I was afraid of cooking the old board. This controller issue is a serious concern for me as I often leave for weeks at a time with the rest of the family to tend to the fort, but they would not know what to do, so I shall have to give specific instructions with pics etc. Like theyre doing me a favor even though I reminded them that it has a 12 year warranty on parts. I told them I had four flashes and the serial number. no gas pressure would indicate the heater has been shut down and the error code is released? Other than that it looks the same from the exterior. Only the technically adept or handy should do attempt this. The first time they sent us a new valve for free and my husband installed it. Well it died for good. The Controller should now work normally for a few days to months before it may fault again. i am walking thru all theses stepsworking on the circuit board nowdrained refilled and this is last effort before callingcircuit board battery?? Thx loreleaf for the post and pics. And if you are atheist? Honeywell stinks & has caused lots of trouble for me. 3: Snap the cover back onto the heater (so you can light the pilot-light). But, the light on the control never starts flashing. So since my controller is under warranty I will get a new one, may pay $10 for shipping or try and find one in town where they charge Honeywell directly, they gave me a special number to give to the store. Free 4 day shipping. Although the reset procedures in this thread are obviously great and simple workarounds to the problem of resetting this damn valve, I also wonder if there may be some secondary interlock linked to the gas pressure which would cause the valve to retain an error condition as long as it is detecting gas pressure? I am now one of the afflicted and would not like to have to go through this every 18 months. Worked for me waiting to see if burner shuts off The cover is still attached to the back of the unit by a colorful ribbon of wires, with a plug at the end that connects to the circuit board. Heater is only 7 months old. Thanks again to all. One morning I woke up to find no lights on the Gas Valve panel. I have a water heater that is 18 months old and Im already repairing it? We are dealing with possible gas leak & explosion here guys! This changes to red flash code when there is an abnormal condition. I came home from a 10hr workday Wednesday to a cold shower! God Bless you anyway! So the fault condition DID (initially) reset itself. Going to researching flushing and cleaning the tank for good maintenance. I keep flushing the tank through a short piece of hose every week or so and the water out looks pretty clean now so Ill only do it once every six months or so to keep it clean. Thanks for at least giving me some temporary hope (how to reset the white button) on my stubborn heater and for making me smile while you did it. If it reads less than 12 volts, you may need to replace your gas valve or controller. So far, so good but was looking up things that could go wrong and found this page. Get a contractor model. Thanks in advance. Back then Sears service said it needed a new module but they would have to install it to keep the 12 year warranty for parts in force. Wish me luck tomorrow! doctor dead, steampunk adventure set 1904 san francisco, . Turn the temp knob down to VAC (lowest setting for vacation) I just wrapped a twist tie around the 2 posts on the right & replaced the cover to restart the pilot then removed it when all was well & done. These sensors, provide the fail-safe mechanism through which the, temperature control as well as water temperature. I replaced the bad push button with the old one and did the Franken valve face switch. I got my first shower in after 2 days. We have a drought in CA and losing 100 gallons (2 TANKS) of water every six months isnt backbreaking, but it sure is a pain that should not be in the design. Fixed it last night and still have hot water this morning. It works! But, dont buy a water heater from the DIY in any case. When I put it back together, it still flashed 4 lights and only the pilot would light. Fix Bypass with a 15k, 2 watt resistor, and no problem. Still working after these few months? Rheems quality control gets low marks for the initial failure. This should at least get you hot water and time to get another controller from like Amazon. Last year I had the blinks. I am beyond pissed, Reliant has a warrantee but it dont cover parts!!! So I would recommend to you ( with Valve off the water heater and no gas applied, to test the pilot valve (left pin to (+))with the AA battery, and test the main valve (Right pin to (-)), and each individually should click. What a pile of JUNK!!! Thank you for your terrific post. I do not think you have the same honeywell control that this website is discussing, there is no power switch or power cord. Correction, meant to say gas control valve, not thermostat. It installed easily. Right after I was done and moved on to light the pilot, the damn thing started flashing 7 times, which means gas control valve failure, right out of the box !!!! The wt8840 is powered from a thermopile heated by the standing pilot flame. I am not sure if holding the temperature button in is electronic or mechanically acts on the pilot valve (would hope the latter). How to un-fault a controller I was told that you can use the yellow teflon and sealant for gas and water, but the water products do not work on gas. ( P.S. Also, if a capacitor is all that is stopping the board from resetting it can be discharged by placing 1 leg to ground. The thing is less then a week old!! I took the circuit board completely out of the unit and let it sit for about an hour. So far, this one has continued to work for a while I can not tell yet if they have actually fixed them though. Dont take this for granted, make sure you do your part of manufacturers suggested periodic maintenance such as tank drainage, Anode rod inspection, etc to prevent future faults. * Honeywell Gas Valve on a Water [], [] How turn water main cutoff valve , In event main water valve fails, final backstop operate shut water house: main water valve street.. How to Turn Off Your Water Using the Main Cutoff Valve on 411 plumb: &p valve water heater leaking, Learn determine &p valve water heater leaking fix leaking &p valve.. 411 Plumb: The T&P Valve On My Water Heater Is LeakingResetting #$%@!! The next guy I talked to was very surprised that the Valve would be bad again so quickly so he had me go through a reset procedure. So while they said just use the sealant through out, I actually used a combination of both. If you are getting 750 millivolts at the RED and WHITE connections, then I would think it is a dud. I followed your instructions to clear the fault and they worked fine. I cant think of how many brands of water heaters use the same honeywell gas valve. If that didnt work, or if you already have the new valve and prefer the slightly simpler approach, proceed as follows. They said they couldnt do anything about that. I got the dreaded 4 blink on a 3 year old water heater that had to have the control module replaced after the first year. Mine is 3 1/2 years old. Put it all back together and re-sealed the gasket with red (high temperature) RTV gasket sealer. This seems like a part that needs to be recalled and a Class Action Lawsuit filed. Get a contractor model. (For me it was the the inlet gas pipe on the valve.) Its not more than 3yrs old. Would appreciate any info on fixing the WHITE Light Gas valve. This isnt connected to house current, so dont worry about touching any wires; you wont get a shock. Some of us had moved the controller dial through its full range and subsequently the controller failed with the 4 code. I have advised my friends to call and tell them they have four flashes and get the gas valve now whether or not it has died. Brand New. Tyler, I will be buying a copy of your book to show support for you hosting this thread and helping to save people a LOT of $$. All models of WT8840 include an integrated NTC temperature sensor. you will get a 7 flash error. As info only for the less mechanical people out there, if you lay down on your back and look through the sight glass window, it makes lighting your pilot very easy. Said any time they shipped something it would be 10, 20, or 30 dollar charge. any suggestions ? Setting this one at hot results in about 120F as noted elsewhere, which is hotter than one can stand for continuous exposure. Praise GOD. The Wt8840 Series Is The Water Heater Control For Trade Use to replace WV8840 valves on AO Smith water Heaters. Thank you sooomuch and my daughter thanks you, hot water is a must for her. This is a BRAND NEW Honeywell Gas Water Heater Control Valve. I didnt mind to pay for the shipping cost, but, what I minded was the device was poorly made. Have fun boys! The screw on the back of the control board is a Torx T-15 size. I have a newer version. Cheers. CS8840 pilot assemblies are, The immersion well for sensing water temperature, has matched NTC thermistor sensors. It was very difficult to flush out and I ended removing it by use of a shop-vac and small hose modified to get through the valve hole. I too thought no big deal to turn my water heater up ONE NOTCH!!! David Boone I Love You. Only 18 month old water heater and I too had the four flashes of death, with working pilot light. I will miss 7 -10 years of worry free Honeywell Gas Valve on a Water Heater Filed under useful Executive summary: Once it has detected a "water too hot" event, the gas valve will never work again unless you know how to reset it. I copied and pasted your instructions into word and saved the file. I have always had it at one above on A. I shorted every connection on the board to the only connection marked GND rather than wait the hour. Let me step in line with all of you. Product guides and documents Product Documentation (PDF) Make an offer: Pre-owned. I replaced the Assy Unit thermocouple with the pilot lightNOW it flashes 7 times with 3 second pause. Push for 5 seconds then light fixed mine. $211.94. Rebooted the pilot and set to just below HOT. Thank you Pioneers, Thank you Tyler. Let me reiterate the steps Charles and I did so it will be on the end of the thread and readily visible. Although the majority on this thread are dealing with Whirlpool heaters and the infamous 4 flashes of death, my heater is a brand new Rheem, installed just a couple weeks ago. Great just what I needed, obviously the plumber who installed the WH did not change the 30 yr old shut off valve at the same time! BUT, the adapter for the wire harness only goes into the new board one way. Do this at work sometimes before shipping a job we tested with a charged capacitor. Falcon Edge Self-Retracting Lifelines. First, get a new valve. Any suggestions? Thanks Randy. Gently wiggle out the housing. I put a speaker wire on the positive then putthe board and on the water heater. I dont think it is cost effective. Some designers use whats called a super cap instead of a battery to preserve data for short periods of time. The battery trick worked for me. Still working so far. I wish I had known this a few months ago. They said it needs to be assessed by a factory authorized repairman. This may help all. Thanks for the information and comments it help me restart my waterheated. Keith, the manual says 7 flashes means Gas Control electronic fault Honeywell Water Heater WV8840B1109 0 Solutions WATER HEATER MANUAL Honeywell Water Heater Wv8840b5068 0 Solutions pilot light blink 4 times every 3 seconds says ove Honeywell Water Heater Gas Water Heater 1 Solutions Not working. shut off the pilot and reconnect the 3 wire plug and but the cover back on. Rather, drain it at a slower rate with a 1K ohm resistor. At this point the flashing light went to the Heartbeat flash (call for heat), the exhaust flap opened and the ignitor lit the burner. HELP, what step to go. I cant believe they sent me a dud. Thanks E. Update : Tried all the reset methods and none worked for me for the white light control valve. If no updates this worked for me. Since I dont have a location near me and have a demanding household for hot water, I opted for the $30 overnight shipping option. UPDATE: David Boones method worked great for me, exactly as described. Pre-Owned. Voltage Minimum: 350 mV dc, open circuit. CS8840 pilot assemblies are designed for use with this control. This piece of junk is only 13 months old. I opened the cover again, left everything plugged in, took a piece of speaker wire with the plastic off of the ends, and held the wire ends to the top left pin and the top right pin for a few seconds. It may show now the normal 1 code or it may show a 7 or maybe a 2. What is the easiest way to mimic the thermopile 750 milli volt so I can get the brains working without the pilot on. This is if the controller just will not cooperate. I agree but the cheapest I have found a valve is $199.00 plus shipping and tax. ! coming from me! Got a 7 blink code which cleared to a 1 blink normal code after a few minutes. Im looking for a replacement LPG gas control in Mexico (Im close to the border). I had the unit replaced. Just lit the pilot again and set the temperature!! My tank is fed solar preheated water, and so far, that water has been warm enough that the main propane burner has never fired with the thermostat set to LOW, so I was just curious. It is powered from a thermopile heated by the standing pilot flame. If I had just changed out the circuit boards on the old control valve Id not have gained the better sensor. My unit was only 3 years old! Great writeup! If the reset procedure needs to be repeated, I figure it can easily be done in less than 10 minutes. Should I bootstrap the thing by supplying my own voltage of 750mv and try David Boones most excellent fault reset procedure? Give me a break. Let the pilot without the chip wires plugged in then turned it off. and now I got myself a huge repair issue, what the hell is wrong with kenmore and Honeywell to make a dial that allows you to raise the temp up to A,B,C AND VERY HOT and just by putting it up to A now I get 4 blinking lights and have to pay a repair technician to come give me a diagnostic! Had a 7 blinking light. I have the 50 gallon model of the Whirlpool water heater from Lowes that has the Honeywell controller on a Bradford White valve. The customer service representative explained to me that I needed a new Gas Valve and that if there was a store around me that had the Gas Valve, I could buy there (Menards, etc.) YES!!!!! I have a 2 yr old whirlpool 30 gal gas model with the Honeywell valve unit. Kenmore water heater purchased at OSH in 2012. The gas valve is a Honeywell WV8840C1406, red led which changes to blue, 1 flash, when everything is working right. I called Whirlpool again, they agreed to ship a new replacement for $30 shipment again! Its not very complicated, really. Save honeywell wv8840b1109 to get e-mail alerts and updates on your eBay Feed. Then This year the pilot went out and I tried to re-light by pressing the red knob pointed at PILOT and pressing the square igniter button. Good info here, had 4 flashes, remove white valve cover after lighting pilot, place a jumper wire across two posts that were right side top , pilot quit, waited, relit pilot, turn gas control to low, main burner lit. worked for me. Up things that could go wrong and found this page it flashes 7 times with 3 pause! Charles and i too had the four flashes and the error code is released for periods. Pilot flame sensing water temperature 3: Snap the cover back on but. Wv8840C1406, red led which changes to red flash code when there is no power or. Brains working without the chip wires plugged in then turned it off subsequently the failed! 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