Update your shipping location. All models of WT8840 include an integrated NTC temperature sensor. However, the length and duration of self-correcting fault conditions rapidly grew more frequent and longer over a matter of days. I nervously turned the controller dial to the 9 oclock position, the burner burst to life, and today I have hot water again. So the fault condition DID (initially) reset itself. A link in your article would have been nice. For more information forwardthinking.honeywell.com Home and Building Technologies 1985 Douglas Drive North Golden Valley, MN 55422 . Look at a site like http://hometips.me/Mar/How-to-test-and-replace-Honeywell-gas-control-valve.pdf on how to remove the Controller circuit board (one screw and 3 tabs) and black control knob ( lean it to the side and it will pop out. Did you call Honeywell directly? Thanks a lot guys for these posts. Again, because Im somewhat inexperienced at this stuff, I found that there is a different teflon tape used for Gas than in plumbing. Something to consider. How can this have been going on for years and not have been fixed? At least then Ill have a stockpile when the water heater is out of warranty. We had a power outage and the codes are switching from the 4 beat to the 7 beat to the heartbeat . Thank you! Four flashes only happens if the water overheated different problem. If the flashes dont indicate a problem, look for a reset button somewhere other than on the valve, especially on the plate that covers the heating chamber. And you also carry repair parts for other models that are now obsolete, right? and then refuse to buy if the answers are not yes and yes.. $49.89. Could only see me in the eveningReading about what you guys have done. Picture:here. It has a stainless steel protective cover. To begin, address the old gas valve. i was still under warranty so the valve was free less $30 overnight shipping. Some people said touching the 2 top posts and you said top right and bottom one. Although, it wouldnt hurt to turn the gas off at the water heater line by twisting the valve into the horizontal position. Move the control to Hot and the Water Heater main burner should come on. I hope this helps others! Twist the phone wires together, the burner lit for about 20 seconds then shut off. Thank you Cranky Tenants and Dave Boone! Look at where the Valve body pins connect to the circuit board. If it reads less than 12 volts, you may need to replace your gas valve or controller. Connect the RED and WHITE power wires back on the two connections on the circuit board. The gas valve is a Honeywell WV8840C1406, red led which changes to blue, 1 flash, when everything is working right. My Family thanks you for the tip to reset the Honeywell Gas control valve. i did just what you described and my water heater is finally on. Get it from e-bay, just look at picture to make sure it only has red & white wires to the right and NOwire to left side under COM.. Got the same 4 blinking lights Saturday . When the pilot is lit, it will only glow blue, and not look this intense. Started looking on line for a replacement and came across this site. Could sediment do this? On all of the occasions that this happened I was able to reignite the pilot and get the heater going again simply by turning the valve controller to off, waiting ten to fifteen minutes, and then re-lighting the pilot following normal instructions. Plug the cord back in The next steps may void the warranty, and Now DISCLAIMER: Do not try this at home: What is top left pin and the top right pin you arereferring to, while holdingcircuit board still inside the controllerassembly and facing towards me which corner are youreferring to, can you please give me some details or a picture thatwould be great. I really did not want to mess with wires inside so extremely glad this works for this controller. Fixed it last night and still have hot water this morning. burners are on. Its been a week since I reset the valve and everything seems to be working fine and I did not drain the tank. Many, many thanks for the previous posters comments that led to this fairly simple fix. Thanks all and internet! The replacement valve I received also has a white sensor light instead of red, and it has a metal capped sensor instead of black plastic. That signaled an error code for a fatal flaw in the water heater gas valve. Thank you sooomuch and my daughter thanks you, hot water is a must for her. Lessons learned eh? Second water heater weve put into this location in 3 years, due to bad Honeywell controllers. I set the temperature control to just below hot and the burner came on. This is if the controller just will not cooperate. After re-installing the burner and reattaching all the wires, it started up with the 7 blinks & eventually went to normal 1 blink. I waited to see if the pilot would go off, but about 3 minutes later it started flashing normal, once every 3 seconds. limit (Temperature Cut-Out [TCO]) function. My contacts with them left me in complete distrust, with the feeling that their solution failed to provide any real value, and my belief that while they may get my water heater working again, Id be left lighter in the wallet after being taken for an unpleasant ride that I could have (and did!) Although the Frankinvalving wasnt an option/didnt work, it did show me what I was up against, introduced me to others who have had the same problem and what everyones resolution was. I tried to jump the posts a few times (Using twist tie wire, no battery) but kept getting the 4 blinks. Pull the three wire connector off the circuit board by pulling it straight out. WV8840B1109 Gas Valve for Honeywell Whirlpool Water Heaters - WV8840B1109 WV8840B1042 No reviews $42999 FREE delivery Feb 27 - Mar 2 Or fastest delivery Feb 24 - 28 Small Business BW Technologies Yellow GasAlertMax XT II Portable Combustible Gas, Carbon Monoxide, Hydrogen Sulphide and Oxygen Monitor with Rechargeable Battery No reviews 5 gas rated pipe sealant. I decided to try the How to un-fault a controller instructions above by David Boone as a first resort since it is easy to do. Any ideas? Although the part is covered under warranty, they will not just send a replacement. READ THEIR INSTRUCTIONS A FEW TIMES OVER! You can get the pilot to light by pressing this button, but unless you address the underlying problem, the chamber will overheat and the breaker will trip again. Hope this doesnt keep happening. Super easy. After reading most of this string I found a small piece of wire between the pilot light pin and main valve pin after pilot light was on did clear the code after relighting the pilot again to flashing 7 which normalized to one flash shortly after. Fixed? Remove the ivory-colored plastic front of the gas valve from the back of the unit. The WT8840 Water Heater Control is designed for use in Standing Pilot applications using an immersion well for water temperature sensing. Still working so far. If no updates this worked for me. I replace the whole unit and can not get the pilot to re-light. At this point the flashing light went to the Heartbeat flash (call for heat), the exhaust flap opened and the ignitor lit the burner. Was sent a new one with a bad (stuck) push button sparker. I was afraid of cooking the old board. That said, I decided to tackle this replacement as I wasnt going to shell out a couple hundred for someone to come in and do it. Next, there are at least two variations of this unit. Also turn the black dial to Off. In that case, the pilot light will not stay lit and you do not get the four flashes. Keith, the manual says 7 flashes means Gas Control electronic fault Called for a replacement through AOS Smith and in the meantime followed Davids How to un-fault a controller mission with success. For $75 theyll come out to asses. Plan the installation as outlined below I cant believe they sent me a dud. I tried a few things and finally did a pilot light start up with everything attached, took the front cover of the module off with the lights blinking X4, the pilot went out and the blinking stopped. Turns out painting and cleaning the basement tripped a code 7 flashes. And if you are atheist? I am trying to get an idea of how reliable the soluton is. The newer ones have been Fixed so they will not reset. I also drained a small amount of sediment from the bottom of the tank, which was mostly brown water. Thanks so much. hot water until the water heater rusts out, explodes, leaks or just plain gives out and you just get another one. Finally this past week it was in the error mode and stayed there. In fact, not only have they not fixed the problem, some instructions I found online lead me to believe that they deliberately introduced this feature after the original design. Now I have two fail in 27 months. Tried disconnecting the old board for an hour. The Temperature probe is a different design. The only material needed is one short jumper or piece of wire. As shown below, you must: Removing the cover of the insidious old gas valve. I believe I was getting 7 flashes until turning burner on and in a short time the flashes went to normal 1 flash. I now have no indicator lights at all and when I try to relight the pilot it does not appear that the gas valve is opening for pilot flow at all. (I realize this is way after the fact but just adding some personal experience) When the first unit failed, I drained out most of the water, sediment appeared minimal. 17 product ratings. Correction, meant to say gas control valve, not thermostat. Clearly the valve controller is mis-designed. Just came home one day and the pilot light was out (this is the second time). Thank you thank you! This time I followed the directions and got it back on myself(after 3 tries) but it wont remain on. If peoples replacement valves with the white indicator lights dont fail about the same rate as the old ones, maybe Honeywell has resolved the issue. for labor. I ignited the pilot and set the temperature but then got the 4 Flash code. Expect difficulties. Water heater runs both water AND heating in the home 0 degrees in Denver right now! Cold water for 3 days in winter. When I turn the dail on I IMMEDIATELY turn the dial all the way up to the highest setting and back to the lowest repeatedlyI did it 7 times in quick succession. The water heater would not work properly right out of the box. Forgot to add one more important bit of informationI do not have any error codes, the red light blinks for standby mode and shows a heartbeat while the pilot light is on and continues despite the burner failing to ignite. So, I decided to let it sit overnight and that did the trick for me. The water heater is a Kenmore and I called Sears but they only wanted to send out a service worker for $79/$90 to diagnosis the water heater although I explained numberous times that the water heater is OK It is the controller that failed. Then plugged them in and lit pilot. In case you havent seen one before, its called a flat-bladed screwdriver.. It is a Honeywell Reliance 9007884 Series 300. I have a 2 yr old whirlpool 30 gal gas model with the Honeywell valve unit. they refused to sell me a new control///, i will not buy awhirlpool; any thing again////////////. I did the same thing but it immediately returned to four flashes. blue light 65 . Had a 7 blinking light. This would upset me less if I had hot water meanwhile! After reading through everything in both Cranky and DBs posts a couple more times, finding a 9v battery and making a second jumper wire to try the battery procedure described in DBs post, I went back to the unit, turned the gas supply back on and re-lit the pilot, when BINGO! Voltage Maximum: 850 mV dc, open circuit. The main gas valve will open and the burner will fire up (If is does not fire up, it means the pilot was not lit and you should disconnect the battery and start over when the gas clears). Thank you Pioneers, Thank you Tyler. Thanks. The valve location is high enough on the tank that sediment likely wont interfere with its temperature sensing ability; 2. Im keeping your method in my hip pocket, though, because it is much simpler. It will stay on once i jump the top left and right pins but it wont clear the code. The seven blink disappeared shortly after that. heres what i did take off the cover on the valve and disconnect the 3 wire connector. But we know different, Sounds like a lot of us are having the some problem: Whirlpool did not improve their product going to this control valve thermostat. It is interesting to note that the water remained lukewarm with just the pilot lit over the past several days. Also, is the setpoint continuously variable as the dial is turned, or are the labeled settings stepped and all there are? My light is now white instead of red and the electronic board appears slightly different. WT8840 TRADE WATER HEATER CONTROLS 34-00013EF01 2 PLANNING THE INSTALLATION WARNING Fire or Explosion Hazard. Took the board out and just touched everything with the cross wire and let it sit. Wednesday morning earlylooked on porch for another package I was expecting and found the new control valve. Some designers use whats called a super cap instead of a battery to preserve data for short periods of time. Thank you for posting this ! The Water heater will appear to be working now, but in a several seconds it will figure out that something is wrong, and it will shutdown the pilot valve and the fire will shut off. Although, the first time I did it, I only let it sit for about a half hour like he did, and I still got the 4 blinks and it wouldnt light. It replaces the old part numbers listed below. Is there a replacement gas valve that people have had success with? All models of, WT8840 include an integrated NTC temperature, The WT8840 is powered from a thermopile heated by, the standing pilot flame. (day job of electrical engineer). No brown or other weird looking water. Turn the knob to 9 or 10 oclock- since your controller is faulted, nothing should happen. So Im going to drain the tank and replace the valve tomorrow as planned and call them and see how soon they can get me yet another unit. YES!!!!! Manual 34-00013EF-06. you will get a 7 flash error. After reading many of the comments rather than short anything on the circuit board I just unplugged the red and white input power and waited about 1 hour. Anyways DBs method DOES WORK! Rotate the knob to 9 oclock to see if it will fire up on its own. Use a flat tip screwdriver and remove the housing by putting the blade into the two top tabs and depressing slightly. Cheers. TOUGH! I followed your instructions to clear the fault and they worked fine. . 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