The original red light gas valve broke after 2 years. I was successful in clearing the fault code from my Honeywell WV8840B1109 Supply Valve Controller simply by utilizing the single jumper wire method as described in the post from CrankyTenants. No, they want to sell you the whole valve, of course. Light the pilot. 5: Wait for the status light to start to blink (Mine alternated between 4 blinks and 5 blinks). Ill call for the replacement to have on hand and keep the instructions. Setting this one at hot results in about 120F as noted elsewhere, which is hotter than one can stand for continuous exposure. At just 3 months old the second unit failed! Looking for a new appliance retailer who values its customers. After just a couple of minutes the code changed to 1 and now I have hot water. Mounting: Mounting in upright position only. Put the cover back on temporarily with the connector still disconnected. Called for a replacement through AOS Smith and in the meantime followed Davids How to un-fault a controller mission with success. THANKS & GOD BLESS. 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. Keep the knob pressed in until the Pilot valve opens (a click sound and the status light starts blinking on the circuit board). Miller 3/4" Grip. It may show now the normal 1 code or it may show a 7 or maybe a 2. Water Heater Gas Valve Replaces Honeywell Resideo WV8840B1109 WV8840B1110 WV8840B1109 WV8840B1110 Furnace Heater Gas Valve Shut-off Slow Fast Opening Pilot Spark Hot Surface Ignition Repair Part . I believe I was getting 7 flashes until turning burner on and in a short time the flashes went to normal 1 flash. Came back and it fired right up. If I had found this earlier I would have saved the next day shipping and done the $10 one. 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. My unit was only 3 years old! One other thing I could mention and that is there is likely more to this story than what is apparent. The new valve seemed to act the same way except without the main burner lite, out , and relite. Thank you Tyler for starting this thread. 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 am not sure if holding the temperature button in is electronic or mechanically acts on the pilot valve (would hope the latter). Thanks to all the posts here!!! Its not more than 3yrs old. I am getting NO Flash from the led light. Loreleafs procedure (5 January 2016) worked for me remove cover and short 2 pins with a screwdriver. I turn the switch to off. It cant flip up (actually it can if you try hard enough, but then youve probably broken it). I called Whirlpool customer service, got the replacement valve for $30 cost of the shipment. She did say they were including a return label if I would be so kind to return the faulty part so they could examine why these are giving out so quickly. $211.94. I got pretty bitter there thinking about it. no gas pressure would indicate the heater has been shut down and the error code is released? It Is Designed For Use In Standing Pilot Applications Using An Immersion Well For Water Temperature Sensing. The WT8840 is powered from a thermopile heated by the standing pilot flame. Well, a couple of hours ago, (New Years Eve), my wife ended up in a cold bath again, so I went down and checked and this time it was the 4 flash code. I didnt use a battery and just jumped upper left and upper right pegs. Had to do it twice for it to reset. Thank you for the excellent instructions, they worked on the first try. I wish I had known this a few months ago. All that Sears tried to do was sell me a warranty extension for $199. Correction, meant to say gas control valve, not thermostat. I have the same set up as rdarnitall on 31 December 2014 at 7:28 pm and I just wanted to say thanks for that reset procedure, it worked for me. Buy It Now. I lit the pilot, and the indicator returned to 1 regular blink (the sign of normal function) as the gas flowed to the burner and ignited. Turned the dial to low and it started heating. Only the technically adept or handy should do attempt this. Anyways DBs method DOES WORK! Honeywell said it is my fault because I failed to drain the sediment. ENJOY, BIG BIG thanks to you, it worked i fixed it. They didnt ask any questions or ask for the old one to be returned. What is the easiest way to mimic the thermopile 750 milli volt so I can get the brains working without the pilot on. Now WH is working fine. You can now release the knob and the pilot should stay on. The thermal switch on the hot water heater was broken. DB.THANK YOU kind sir for sharing this! I bought the rheem propane water heater6 months ago now its giving me problem 2 blinks every 3 secondsTHERMOPILE voltage low. 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. With the new unit, since it goes into the water tank itself, do you need to drain all the water from the tank before replacing it? At least then Ill have a stockpile when the water heater is out of warranty. Pull the three wire connector off the circuit board by pulling it straight out. The WT8840 Water Heater Control is designed for use in Standing Pilot applications using an immersion well for water temperature sensing. Obviously weve all had our issues with the apparently worthless Honeywell controller. So are you saying that you got yours from the MFR? Do this at your own risk, your mileage may vary. What powers the light? The Temperature probe is a different design. Thank you for you detailed instructions. When the pilot wont light and there are no flashes, the problem is generally that the heating chamber got too hot and tripped the safety interlock. As a side note, the light on the new valve is white. Slide the power switch on 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. 2pos honeywell spst usew. Few minutes later, gave me the all clearThermostat requiring heat (No faults). Disconnect the battery from the Right top pin. smith), the gas valve went bad so I had to replace it. Bought my Whirlpool at Lowes. Looking at the V of the Valve body pins, the left top pin is the pilot valve. Some designers use whats called a super cap instead of a battery to preserve data for short periods of time. The final straw while talking to Rheem tech support the main burner lit for 1 second, went out, and relit 2 seconds later. 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. If the new valve is basically the same model as the old one, you dont need to pay a plumber to replace the evil valve. 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. Then connected one end of wire to the metal frame of the valve and randomly shorted numerous positions on the bottom of the circuit board.. i.e. Press down on the plastic cover in front of the clips to release them. 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. But, the light on the control never starts flashing. They are not interchangeable. The later version has a board-edge trace for accepting another type of slip-on connector. I released the pilot knob and advanced the setting to HOT and the main burner came on.. Yay. Went from four blinks to seven. I fitted the WH with a cheap garden hose when I installed it last year and ran the hose permanently to outdoors for convenience. So far, so good but was looking up things that could go wrong and found this page. . Here is what I did with pictures to solve this issue. I havent opened the valve yet out of curiosity but from what I read here, the Capacitor sounds like a good culprit. It is interesting to note that the water remained lukewarm with just the pilot lit over the past several days. My Kenmore water heater is controlled by the Honeywell Gas Valve (part # 9007884), which contains the WV8840 Communication Port. So far its been working fine. ; 4. Then plugged them in and lit pilot. Gently wiggle out the housing. The red one, I found, CAN be reset using above methods. save delay . 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. The valve location is high enough on the tank that sediment likely wont interfere with its temperature sensing ability; 2. (no blinks, no pilot) Turned it around and clipped it back in and went through the lighting the pilot light. What a pile of JUNK!!! Does the brains look at the voltage from thermopile to check for over heating or underheating? Unfortunately, Charles, your fix did not work for me. Wouldnt it make more sense to not let the dial go that high? Holy Shite.Im at the end of my gas heater nightmare with one thing left to doreplace the whole valve and im back and runningwas researching whether to do it myself, then ran into this article about the dreaded four flashesalready had the valve, and presto, in 10 minutes I had a working water heaterI love the Internetand Tyler, you are my new hero. I think the Board discharged and thus reset the memory allowing it to operate again. It takes a T-15 screwdriver to remove the cover. Thanks again to everyones input you all are a life saver! Resetting the #$%@!! Lore leaf, Great post! A day or so after install, I did raise the temp just a tad to 130. So thanks to commenters earlier, before, and above. These Honeywell gas controls include a manual gas valve, safety shutoff, single millivoltage automatic operator, and pressure regulator, pilot gas filter and flow adjustment, pressure tapping, and thermocouple connector. They said they couldnt do anything about that. I ignited the pilot and set the temperature but then got the 4 Flash code. Switched back to the old board and still couldnt get it to work. Last year the Pilot light kept going out by itself. The new gas valve arrived and after inspecting it I see they redesigned the probe that sets the 4 flash code with a stainless shield. If I had just changed out the circuit boards on the old control valve Id not have gained the better sensor. I had to do it again so Ill detail what seems to have worked form me. Wow, amazing! Great writeup! I have a water heater that is 18 months old and Im already repairing it? Thanks for the above suggestions. 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. I received the new valve and noticed a few differences. Thanks for the information and comments it help me restart my waterheated. is there a small battery? I hope this helps others! Also turn the black dial to Off. No, No, No! Model U1######## water heater natural gas, 30 gallon. ~ diy-home-tips.vwx.info, Home Projects: Is It A Problem That I Have Two Of Each Color Wires On My Honeywell Thermostat?. as the faint click was heard and the flashing light reappeared, it was now only blinking once! Made in United States. Save honeywell wv8840b1109 to get e-mail alerts and updates on your eBay Feed. I called my father-in-law and told him about it, he is a plumber and replaces this kind of valves all the time but he said he has never seen one that flashes any codes other than normal right out of the box Go figure!!! All models of, WT8840 include an integrated NTC temperature, The WT8840 is powered from a thermopile heated by, the standing pilot flame. ~ diy-home-projects.vwx.info, Home Projects: How Do I Remove This Exterior Water Valve Cap?. Remove cover, put wraps on the two posts and replace cover. Ive been reading through all this information, but other than learning the honeywell unit is a POS, I havent figured out my problem. It is powered from a thermopile heated by the standing pilot flame. Cal. This is the second time I have had the dreaded four blink failure in a 30 Gal. Brilliant!!! Opening hot valve of nearby sink, opening air release valve on top of tank, using 4 inlet pipe to use as a wrench lever to remove the Gas Valve assembly were a few minor but helpful things. Something to consider. The screw on the back of the control board is a Torx T-15 size. They have a manual shut off. ! coming from me! So in my opinion, WAIT the extra day and save yourself the $20.One thing Johnathon DID request was I send the old one back and that he would place a return label in the packageWell I live 23 miles from town and not going to do a rush job for thatAND I kinda put the replacement on standby and like DB saidClearing the fault it may last for days or MONTHS before it does it again! If it does not start up on its own after the shutdown, then you may have to reconnect the battery to the right top pin and go through the above procedure again and it will shutdown again. I dont know if I ever got the red lights flashing. I did put a piece of electrical tape near the end of the ground wire given my tendency to reverse things. In the meantime I figured the shutoff valve to the WH was not working then started to leak! If you havent done it in a while, theres a very good chance that it will help solve whatevers going on. I would like to pursue the same solution (get a replacement). The instructions are short, but they have very helpful tips and information. If so, I want him shot. Picture:here, 3. My plumber advised he has been seeing A LOT of these units fail. It should not be necessary to completely empty the tank unless it is just full of sediment and you have never tried to flush it out before. The Jaccuzi is available at Lowes. Why doesnt Lowes carry repair parts for the water heaters they sell? I would like to add my experience with this hoping it may shed some light. I was afraid of cooking the old board. My install is brand new, so there is no connection to any sediment buildup causing any malfunction state. Is it flashing at you? Here is the simple fix. Check closely to see if you have a spark. Thanks to this blog and everyones exploits with the Frankenvalve Heres what worked so far for me on a neighbors unit: Helpful tips and information meantime followed Davids How to un-fault a controller mission with success sediment! 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