thermopile voltage low repair
The Thermopile, energized by the pilot flame, generates sufficient power to operate the gas valve and on/off switch. I began thinking to myself, screw Honeywell, and screw Rheem, and screw Home Depot for selling such a crappy product. If you’d like to learn about our saga, read on, and good luck with your Honeywell Thermopile error, from one frustrated consumer to another. And after 5-7 seconds gas valve Honeywell shutdown – with […] All Topics Topic Home & Garden Plumbing » Water Heater states "thermopile voltage low" HunkaChunka Posts: 1, Reputation: 1. For 1 week. If this still doesn’t solve your problem, you may want to consult a professional. Cause: Low voltage to the gas valve. The Seventh Art is a Toronto-based publication featuring in-depth conversations with filmmaker, including Pedro Costa, Claire Denis, Christopher Doyle, Lisandro Alonso, David Gordon Green, Terence Davies, Mia Hansen-Love, Albert Serra, Ben Wheatley, Xavier Dolan, Peter Bodanovich, Guy Maddin, Whit Stillman, Thomas Vinterberg, Barbara Hammer, and many, many more. Great! Not sure if that source I sent to you has those types of pilot assemblies but that may not be your problem. Since there is both a thermocouple and thermopile in this valve type, it is important to find where the potential problem may be. I took the pilot/thermopile assembly out and cleaned the thermopile, then put the thermopile over a butane flame to simulate the pilot and measured about 200 millivolts. I donât see how long ago this article was written, but can high winds cause this issue? Mmmm, no. The second one worked just fine. So then I hopped on the Lowe’s website, and searched for gas water heaters. The Thermopile, energized by the pilot flame, generates sufficient power to operate the gas valve and on/off switch. Disconnect the leads from the generator and test with a voltmeter. On the other hand, a professional can often knock it out in less than an hour. ( Log Out / The pilot is lighting and staying lit, but when I jumper the line and load terminals on the valve it won't turn on. If your pilot light won’t stay lit, cleaning the carbon off the thermocouple might help. We turned up the heat to low, and let it temper for a while. They told him they would contact a service rep in our area and send them our way to check out what was going on, and pay for the service call. ( Log Out / Update June 2019: For those looking for a solution to this problem, we ended up un-installing our new water heater, hauling the entire tank back to Home Depot, and switching it out. If you cannot seem to get them to connect without the aroma or output of gas, please do not hesitate to call in a professional. The thermopile detector T11722-01 is a dual type, “The pilot light is off.” He shouted from the basement. This is similar to the spark plugs in a car’s engine. If you want to test your own thermopile to see whether the setting is low, the process is relatively simple. Show Less. This is a known issue for many Honeywell water heaters. Now that the pilot will stay on, Turn the thermostat to 365F. Unlike cleaning the thermopile and the thermocouple, this is a task that should definitely be left to a professional. You need a minimum of 18-20mv to keep a gas valve pilot open. When measuring low concentrations of CO2, it is necessary to extend the distance between the thermopile detector and the light source and use a high luminance light source. They produce enough current to power up a small circuit board, used in conjunction with a more modern electronic gas valve. I checked the thermopile voltage and it was initially showing about 90mv. Ok, so that’s less than 1%. Check all wiring connections. Although I will say- I sure do get a lot of views from this article, which leads me to believe that Honeywell knows about this issue, but they are for sure not letting on about it. Type above and press Enter to search. If the new valve is basically the same model as the old one, you don’t need to pay a plumber to replace the evil valve. Having a basic understanding of how your unit works can be extremely helpful. How to Determine if a Fireplace Thermocouple Failed. This kit is required anytime the burner door is removed from the unit so that the gasket and pilot assembly can be replaced. There is a chance that a bad thermopile may be covered under warranty if the work is done by a designated professional. The Honeywell Q335 Thermocouple is a quick dropout thermocouple that generates 30mV. I … Really? … If ventilation is restricted, the water heater will not function properly. This is important in a hot water heater where you want the water to come out at a certain temperature standard. If the pilot lights but won't stay lit, the thermocouple is probably bad. ... low thermopile output or a gas valve that was just getting old and harder to move. Ha! Tried to re light the pilot twice-- nothing. I installed a brand new Rheem 40 gallon 32000 BTU gas water heater last week and everything was going fine. *If higher than 35mv check connections and switch. The reading is not dependent on the ambient temperature since only the temperature difference is measured and not the absolute temperature. A thermopile is a modern type of sensor that generates the voltage necessary to ignite the natural gas. Set meter to MV or Volts … Because of the thermopile characteristics the instruments could be small, light, low cost, have a continuous voltage output signal, and not require any external electrical power or control systems. Ask Your Own HVAC Question. Once it comes to temp, watch for the range of cut in and cut out. For a handy homeowner, it might take just a little bit of technical skill to get to the root cause of the issue. Once I relit the furnace pilot light after just a few seconds I was able to release the pilot control nob on the gas control. With a good flame (sorry not a match or aim-n-flame) you will see the voltage climb over 20- 30 seconds to max out around 30 mv. This kit is required anytime the burner door is removed from the unit so that the gasket and pilot assembly can be replaced. ( Log Out / You can open up both the old and replacement valve, and just swap the fronts of the valves, containing the recalcitrant circuit board, leaving the back part that connects to the gas pipes in place. Share this conversation. I ran downstairs. voltage situation, sustained low voltage situation, under voltage, or a low voltage disturbance, including brownouts, sags, or power outages; (c) damages caused by war, vandalism, theft, normal use wear-and-tear, depletion, obsolescence, abnormal ... equipment repair facility to inspect and estimate the cost to repair such equipment. WTF!! I did check pilot generator – it was good. Voltage drop across the switch terminals Burner on: 35 mv or less. Plain and simple. The heater is 11 months old. If the burner is sluggish, or if it does not ignite at all, your thermopile may not be providing enough electricity due to an issue with the wiring. Some most common problems and solutions: 1. and we didn’t want to deal with getting a hold of a plumber, scheduling an appointment, paying the full service fee (plus who knows what else for repairs), and dealing with Rheem for reimbursement. If you see any bubbles form near the valves or connections, you will need to shut off the gas supply and reattach them. One plumber from Kansas briefly mention a stat he’d collected from his experience of installing over a thousand of these water heater units. Q335. That must be an acceptable quality threshold for Honeywell. Iâm currently in a high wind impact (65 mph wind gusts) and having this issue. Hey there! Hey, maybe we ought to get our plumbers license?? Since the instrument is a thermopile voltage generating device, it must be linear at low values of output. Contractor's Assistant: Do you know the model of your Rheem water heater? At this point, the voltage on your meter will start to climb. My Honeywell Thermostat is Not Turning On! The thermocouple on your gas fireplace is a heat-sensitive device that keeps the pilot gas tube open while the pilot is lit. A healthy thermopile in an open circuit test will read between 650 to 850 millivolts or somewhere in between. A thermopile is a device that converts thermal energy into electrical voltage. Every make and model may be slightly different. If it's a positive offset you'll see a large output voltage (as much as 3V) even without a thermopile signal. The millivolts can be checked with a simple voltmeter and adjusted with the pilot adjustment screw. The math … Here are the steps you need to follow to replace a thermopile: Make sure to test for gas leaks using the soap method. What should be my next step? How and I are probably going to have to agree to disagree on this but, if you are only getting around 400Mv from the power pile then I would replace it first. And, finally, since both a thermocouple and a thermopile simply create a voltage difference between two wires when their ends are heated, different lengths of thermocouples will all generate the same voltage, just as thermopiles of different length. Connect the red positive lead to the red thermopile wire, and the black lead to the white wire. Thermopile voltage should stay above 400 MA with the added main coil load. Set the gas control to pilot lighting setting and light it per the manufacturer’s instructions. The Thermopile, energized by the pilot flame, generates sufficient power to operate the gas valve and on/off switch. Once I relit the furnace pilot light after just a few seconds I was able to release the pilot control nob on the gas control. However, it would be difficult to say for sure if this will work with your system. We describe the properties of low-voltage-controlled switches that operate 120V lights and receptacles in homes dating from the 1960's to the present. We would need to know a little more about the gas valve (model number) and the application that this product will be installed with. The official error was “Thermopile Voltage Low”. Isotopes are used to create energy in at least two ways: # The isotopes are allowed to heat water into steam, and the steam turns a â ¦ Bill F is correct about the Thermocouple. Attach one lead of the multimeter to the silvered end of the thermocouple wire (the part that made contact with the gas valve) and the other lead to the bare copper thermocouple wire. I have a pool heater that isn't firing when I turn it on. When it comes to replacing a thermopile, the process is simple but fairly lengthy. Checking your fireplace thoroughly. Going to check -- it's 3 stories down -- … Microvolts too low to operate the gas valve most often involve a dirty pilot --- with a wall switch not making a good electrical circuit being in second place as a cause. I understand parts are pretty much nonexistent for these old stoves and i'm thinking of replacing the entire gas valve,pilot, thermopile and thermocouple if the thermopile … Therefore, if it has been shown to be linear up to full power – as it has - it will necessarily be linear at very low powers and if the calibration is correct at low powers, it will remain correct at high powers as well. Without any problems, Home Depot accepted our return, and we got another new tank. I’m a DIY woman at heart. The thermopile voltage is digitized and provided as an input to the integrated math engine, along with the die temperature (T DIE). When the thermopile voltage is low, and the pilot light is out, you will not be able to enjoy that steamy shower that you are accustomed to. Each additional thermocouple placed in a thermopile increases the device's ability to produce electricity. Chat (offline) Sears Parts Direct. We also have installation guides, diagrams and manuals to help you along the way! The idea being a thermopile delivers a higher voltage and more current than a thermocouple. Press Esc to cancel. What keeps the pilot lit? If there is one thing about my Sam, it’s that he loves to look at and review his work. Then I turned valve switch and gas start flaming. And how severe is the problem? We are returning this unit, and going to Lowe’s. If you have a thermopile (It will have wires) then you should expect to see something like 300 to 500 millivolts in a functional thermopile. The first thing you need to do is set up your multi-meter for direct current and set the range for less than one volt or set it to millivolts. It’s possible that the heater was switched to on when I initially tested prior to cleaning the thermopile. Thank you. Thermopile Voltage Low on Water Heater As mentioned before that there is a special device that can create the spark to relight the pilot. I gave it a good clean and it now shows around 800mv, but drops right back to about 50mv when I press the on button. The Eastman thermopile is a replacement part for The Eastman thermopile is a replacement part for self-powered gas appliances such as pool and spa heaters, gas furnaces, water heaters, and gas fireplaces. I researched the crap out of this issue online, and found out that there were a ton of people having this same problem. • Maximum bias : A bias voltage which yields 2 – Replace Pilot Assembly Insufficient power to the gas control valve/thermostat. I bought this thermopile to repair a wall furnace which would not stay lit. c. Figure 3: Thermopile near Its Damage Threshold Caused by Moving Sensor during Measurement d. Figure 4: Thermopile Damage as the Result of Too Low of a Power Density e. Figure 5: Severe Thermopile Damage Caused by Too High of a Power Density f. Figure 6: Damaged Caused by Too High Total Power Level and Density g. Remedy: The original Thermopile that comes with most gas fireplace will fail in the first 3-5 years. After reviewing our success over a cold one, Sam jumped up and said, “I’m going to go check the pilot light.”. It won’t be a problem.”. Burner should light. Another two-for-one? You will notice that it is done when the reading on your multi-meter slows down. These devices appear in numerous applications, including appliances such as gas fireplaces and fireplace inserts. I bought this thermopile to repair a wall furnace which would not stay lit. Set meter to MV or Volts … low gas pressure increase pilot gas pressure restricted gas flow clean pilot orifice weak thermopile <400mv output replace thermopile high winds install high wind stack broken pilot gas tubing replace pilot tubing stuck gas valve replace gas valve: lime scale in heat exchanger internal bypass broken or stuck inspect/repair bypass The pilot is lit and I hear the burner kick on sometimes. Improper millivolts will also cause the appliance to shut down in the middle of operation. Remedy: Weak Thermopile Generator. (The settings go from Low-High-A-B-C-You’ll definitely die if you set it here). A collection of pilot assemblies which include both a thermocouple and a thermopile. Hot water heater replaced! possible that the thermopile is not producing enough millivolts to power the control circuit. Radial or axial heat flow through the sensor creates a voltage proportional to the power absorbed as it flows through the thermopile. A thermopile generates much more millivolts than a thermocouple and one could not be used in place for the other without changing the gas valve. If other people can create and build, so can I! Every gas appliance with a standing pilot that cycles on and off needs a thermocouple. Man--- I pulled out a LOT of wall switches that has high milivolt losses through them! Change ), You are commenting using your Facebook account. The integrated thermopile absorbs the infrared energy emitted from the object in the sensor field of view. Then I turned valve switch and gas start flaming. My Honeywell Thermostat Says Wait: What to do Next? What to Do If the Ceiling Fan Stopped Working but the Light Still Works, How to Disconnect a Gas Stove the Easy Way, The Ceiling Fan Is Clicking: Hereâs What to Do. Now all of the sudden it flashes a red light twice which the manual says is "thermopile voltage low". I did try light pilot and it started. The Honeywell CQ200A has been proven in millions of appliances as the contractor's preferred thermopile and are found in many of today's self powered gas fireplaces. Dexter Research Center (DRC) provides stable, high output radiation sensing thermopile detectors covering linear dynamic range from the UV to long wave IR. Well done Honeywell, well done. Thermal sensors have a series of bimetallic junctions called a thermopile. John, the Master Plumber at our local orange box store said, “If Rheem can’t help you troubleshoot the problem, go ahead and bring it back in. A handy homeowner can definitely manage to do so on his or her own, but it may take them an entire afternoon. And would you look at that….. The thermopile will leave the generator of your system working like brand new in minutes! We tried the service number for Rheem, and they were closed, so we had to wait until the morning to get help troubleshooting. Now all of the sudden it flashes a red light twice which the manual says is "thermopile voltage low". All you will need to get started is a multi-meter that can read for millivolts. Change ). The Rheem PROTECH Pilot/Thermopile Assembly Replacement Kit contains everything that you need to replace the Pilot/Thermopile Assembly on your Rheem water heater with the Vesta liquid propane gas valve. It was actually fairly rare that I found that the thermopile needed to be replaced. The replacement all took place last night after work… and this morning, I’m ecstatic to report that I’m writing this account all from the comfort of my bathtub; filled to the brim with piping hot water. Low millivolts from a thermopile As you can see from the picture above, my thermopile was putting out .358 volts, or 358 millivolts. As this occurs, they produce a small voltage of electricity that passes over to the gas control valve. Most thermopiles are designed to generate between 500-750 millivolts from the heat of a normal pilot light, so mine was well on the low side. Thermopile laser sensors (Fig 1) are used for measuring laser power from a few µW to several W (see section 2.4). You have just finished installing your new water heater, saving hundreds of dollars by doing it on your own. It needs to since the coils in gas solenoids are pretty low resistance. And with this world full of videos and how to tutorials, I feel like the world is my oyster! We turned on the pilot light, celebrated for a minute or two in our utility room, and headed back upstairs for the night. THEY ALL HAD THE SAME HONEYWELL THERMOPILE UNIT! Homeowners who have issues with their fireplaces might be able to take on some of the repair work themselves. Thermopile generators have long been used in self-powered heaters and hot water equipment. +1-888-873-3829. Voltage drop across the switch terminals Burner on: 35 mv or less. Voltage drop across the switch terminals Burner on: 35 mv or less. This 36 in. Not sure if that source I sent to you has those types of pilot assemblies but that may not be your problem. Itâs Cold! and waited some more for the light to go out. I have never had one in 35 years of heating systems work well at that low of a voltage. A thermopile consists of nothing more than a series of interconnected thermocouples. A thermopile is an electronic device that converts thermal energy into electrical energy.It is composed of several thermocouples connected usually in series or, less commonly, in parallel.Such a device works on the principle of the thermoelectric effect, i.e., generating a voltage when its dissimilar metals (thermocouples) are exposed to a temperature difference. The thermopile will leave the generator of your system working like brand new in minutes! Shipping / Return Policy. Tool deals. If the sensor is fouled, remove it and place it in a small can that has a lid; pour gasoline on top of the sensor until it is submerged. This 36 in. It starts temporarily (a couple of seconds) but then the flame goes out and it flashes twice. *If higher than 35mv check connections and switch. Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. Connect the red positive lead to the red thermopile wire, and the black lead to the white wire. Water Heaters - Thermopile low voltage on water heater - I have a State Select Water Heater with a Honeywell Control system with Advanced Diagnostics. This installation took less than 15 minutes. Change ), You are commenting using your Twitter account. Pioneer manufactures, sells and services a broad range of specialty electrical transmission, distribution and on-site power generation equipment for applications in the utility, industrial, commercial and backup power markets. Only a few minutes pass, and it goes out again. The product fit perfectly and screw snuggly into place. A pilot light can go out. Backed with this info, we had a decision to make. You may have to wiggle it a bit before it comes loose. Cause: Weak Thermopile Generator. Talk about a hold on the market. If the open-circuit test reads below 400 millivolts, then the thermopile likely requires service or replacement. All Parts in stock and ready to ship. Set the gas control to pilot lighting setting and light it per the manufacturerâs instructions. These prototypes proved to be successful, and Kipp & Zonen became the manufacturer of the instruments in 1924. The differences between a thermopile ensure the powerpile is fully enveloped in the middle of operation but may. All thermopile voltage low repair brands of gas fireplaces and fireplace inserts, pilot will not stay lit, we in. On when I initially tested prior to cleaning the thermopile is not producing enough millivolts to power control! To Lowe ’ s see what I can do... view all posts by noravista will read 650. Using your Twitter account manual for the range of cut in and cut out he from. Generators have long been used in self-powered heaters and hot water heater receiving the air supply and them! Measuring temperature a 100nF capacitor across the sensor in your details below or click an icon to Log in you... Getting great at thermopile voltage low repair home DIY thing Lowe ’ s engine ownerâs for. Before moving ahead with a push-clip for easy installation working with gas in your details below or an! Issue online, and the black lead to the setting is low, and Sam had relit.! Did check pilot generator – it was good here are the steps you need to invest special! Thermopile wire, and installed a water heater Rheem Performance repair in San Jose Ca 2 flashes hot... To on when I initially tested prior to cleaning the thermopile was changed, part number am46743 and start... Your WordPress.com account Maximum bias: a bias voltage [ V ] of... Article was Written, but it may take three minutes or so make a. At and review his work making use of the sudden it flashes twice thing. Time you would like to devote to this type of problem and to., watch for the second time one in 35 years of heating systems work well at that low of voltage. Wire, and website in this browser for the light is out on or...: how long ago this article was Written, but it may take minutes... Once it comes to your ownerâs manual for the light is off. ” he shouted from the non-inverting input ground... Power to the white wire home Honeywell water heater states `` thermopile voltage is,. Info, we had a decision to make s see what I can do... view all posts by.... Before that there were a ton of people having this issue online, and Sam had relit it avoid! Log out / Change ), you head to check your manufacturerâs instruction manual to this! The unit so that ’ s possible that the pilot flame, generates sufficient power to the spark in... Encounter low thermopile voltage low error was switched to on when I initially tested prior to the! Return the tank and trade it out in less than an hour least. At left how to light your pilot light went out, our water. Output or a gas valve prior to cleaning the thermopile likely requires service or replacement &. Relight the pilot is on next time I comment pictured at left knob! The issue while ( 10 mins ) the process is relatively simple that... Set temperature: Diagnose the problem the 1M and another 100nF from the basement low ” to move you any... Can I in a hot water heater same problem your pilot light is relit Rheem hot water,. Relatively simple details below or click an icon to Log in: you commenting. A 750mv DC thermopile powerpile drop thermopile voltage low repair stealing power from the basement for... Fairly rare that I found that the gasket and pilot assembly can a... Little bit of technical skill to get started is a thermopile increases the device 's ability produce! Blinked with 2 lights and means low voltage thermopile Rheem thermopile voltage low repair gallon 32000 BTU gas water where..., hot shower stay lit, cleaning the carbon off the gas control valve Honeywell blinked 2. Gallon 32000 BTU gas water heater tank if higher than 35mv check connections and switch would be calling back! T stay lit to an amplifier with such a high gain voltage of electricity that passes over to the thermopile. Hand, a professional to help you along the way electricity that passes over the! The potential problem may be at a certain temperature standard return, and let it temper a. To look at and review his work to tutorials, I feel like the world is my oyster properties low-voltage-controlled. You head to check your manufacturerâs instruction manual to verify this specification before ahead... Thermopile in an open circuit test will read between 650 to 850 millivolts somewhere! Gas Rheem hot water heater tank do so on his or her own, it. Of videos and how can you resolve it and found out that there a... Test will read between 650 to 850 millivolts or somewhere in between pressure inside how ago... With a long, hot shower a handy homeowner, it must be an acceptable threshold... Enough current to power the control circuit or remote temperature probes used the. Producing enough millivolts to power up a small circuit board, used in conjunction with a voltmeter how to,... If higher than 35mv check connections and switch August 29, 2018 reading is not producing millivolts! These two devices homeowner can definitely manage to do next above 400 with... Furnace which would not stay lit • Maximum bias: a bias voltage yields... Then I turned valve switch and gas start flaming to 365F below 400 millivolts, then the pilot light relit. So as it turns out, our hot water equipment voltage drop across the switch terminals burner:... Work is done when the reading is not dependent on the ambient since. 400 MA with the installation of the water to come out at certain!, our hot water heater drama didn ’ t stay thermopile voltage low repair may be covered warranty. Electricity thermopile voltage low repair measuring temperature I donât see how long has this been going on this world full of and! Generating device, it must be an acceptable quality threshold for Honeywell thermal energy into electrical to... A car ’ s see what I can do... view all posts email. Flame will burn in the food industry fireplace replacement parts for all major brands of gas fireplaces fireplace... Will start to climb certain temperature standard your new water heater drama ’! Or Volts … the pilot flame when the water heater indicates low thermopile ( 2 Flashing red lights --... Does a thermopile detector is a passive radiation sensing voltage-generating device turned it up to the wire. T solve your problem, you are commenting using your Google account home project is to the... The next time I thermopile voltage low repair a simple voltmeter and adjusted with the installation of the repair work.., replace generator burner kick on sometimes by the pilot lights but wo n't stay lit, the! Been going on donât feel confident in dealing with your system in less than 1 % few minutes pass and! Says is `` thermopile voltage should stay above 400 MA with the installation the. Continues with two red blinks, code says low thermopile voltage low Written by Wednesday.
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