This may be rather new as Honeywell does not even have a WV8840C listed yet (or it may be an OEM spec valve which is proprietary and not published. Two months later I drained out about 5-8 gallons, saw minimal sediment. If that is true then there could be a case where the manufacturer has just been a little too cute in their programming. i was still under warranty so the valve was free less $30 overnight shipping. + One for DBs repair procedure. It worked like a charm on the older one with the red light however I cant get the newer one (White LED, 8-10 months old) to clear. Ive had my Rheem 7 months . Started looking on line for a replacement and came across this site. New valve on the way from Whirlpool. Any ideas? Set the dial to a reasonable temperature that wont upset the finicky little thing, and you should be good to go. I checked the voltage from the thermopile: 750 millivolts with pilot light lit while holding in the button. Miller Lanyards and Shock Absorbers. I got my first shower in after 2 days. That SHOULD simply cause the heat source to have to stay on longer to heat water, not get the water too hot; 3. However, the length and duration of self-correcting fault conditions rapidly grew more frequent and longer over a matter of days. So to all of you, thank you! Wait a minute to be sure, then turn the knob to off, and disconnect (the RED and WHITE power leads first) everything and reassemble the controller normally and start it back up. Got it the next day, installed it. I just frankenvalved my unit last night and it is working like a charm! Still no flashes.) 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. You will need two clip leads about 2 feet long each(like from Radio Shack I used a black lead for negative (-) and red lead for positive(+)) and be able to clip onto a 1.5 volt battery (I used a weak rechargeable battery with tabs ( you only need about .5 volt DC actually). The final straw while talking to Rheem tech support the main burner lit for 1 second, went out, and relit 2 seconds later. 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. Another comment when I finally got a replacement from Amazon, the LED light was White in color, not RED as my last two. the side you see when it the board is in place. Apparently cutting the power and going through the high-low setting twice is a reset procedure. DO NOT BUY THIS THERMOSTAT! Emptied tank and there wasnt much sediment. That is the valve mechanism. Thanks that was a big help and a $$ saver. The note is just a comment I know it really does not apply to your situation. I set the temperature control to just below hot and the burner came on. The older controllers will reset this way. The comfort range is very small. I bought the rheem propane water heater6 months ago now its giving me problem 2 blinks every 3 secondsTHERMOPILE voltage low. My Kenmore water heater is controlled by the Honeywell Gas Valve (part # 9007884), which contains the WV8840 Communication Port. If you cant get the pilot lit, the thermopile that generates the .75 volt power to the controller will not be generating any power either. I have a red knob with green LED, and white cover. Appreciate the guidance. The two 10 inch jumpers wrapped around the left and right pins was the method that worked for me. Got the ominous 4 flash a couple days ago after turning heat up too high. Plug the cord back in All that Sears tried to do was sell me a warranty extension for $199. You dont have to drain the tank or disconnect any gas lines. I called Honeywell, but they wouldnt tell me the engineers names. My Whirlpool gas water heater is giving me the dreaded four blinks signal. No brown or other weird looking water. 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. Gently wiggle out the housing. To begin, address the old gas valve. Should I replace the Temperature sensor? When utilities came to check gas pressure, my gas was shut off and meter opened for half hour or so. My warrantied part is being overnighted. There is also a White or clear silicone rubber gasket that is entangled with pins and solenoid wires. Thanks for you insight. Fixed it last night and still have hot water this morning. I did call Whirlpool and told them that the new valve they sent was broken and they did send another replacement free overnight. F-ING A BRA! ; 4. Remember these guys deal with this everyday. Ive called tech support for the unit, and they had me check the thermal cut off (TCO)switch. If you need to, stick the screwdriver in from below to lever them loose. I had to be transferred to water heater division and wait on hold a while but it was well worth it.). Thank you! The seven blink disappeared shortly after that. Association (CSA) to the following standards: Powered damper water heater controls (13 pages), Powered direct vent gas water heater (44 pages), Bathroom heater with towel rail (78 pages), Manual will be automatically added to "My Manuals", Troubleshooting with Status Light Visual Indication, Mounting the WT8840 on the Water Heater Tank, Procedure to Check the Gas Input and Burner Flow Rate, Troubleshooting Without Status Indicator Assistance, Troubleshooting Guide Without Status Light, Troubleshooting with status light visual indication, Water Heater Honeywell WV4262B Installation Instructions Manual, Water Heater Honeywell BH-777FTE User Instructions, Water Heater Honeywell VE300S Installation Instructions Manual. My unit is a Kenmore, bought at OSH New Years day 2012. save delay . Thanks for the submission. It refused to even start. Picture:here, 4. 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. I first noticed it a few days after install and immediately freaked and went to get the manual. I have not found a procedure to un-fault a Honeywell Electronic gas controller on any web site, so I think I am the only one to do this. Not much of a DIYer am i but after reading about this scam Honeywell has going on about these modules i had to try this and besides how many more cold showers can one man take..My results? WT8840 controls provide direct replacement, Pressure Regulator: The outlet pressure regulator, See appliance rating plate for inlet pressure range, 0.5 PSI (14.0 in. What a pile of JUNK!!! I have another place with a Rheem Propane Tankless where the lowest normal setting is 100F. I dismantled the gas valve, measure the thermopile, and cant even get a few millivolts (granted, the pilot light isnt on, so maybe its normal). I did read here that a service man said to not go above hot setting. Followed your procedure to a T. I called GE because Honeywell said to. I have 4 blinking lights. I have set a reminder in outlook to drain my tank once a year from now on. I did put a piece of electrical tape near the end of the ground wire given my tendency to reverse things. God Bless you! About 5-10 minutes the 7 flashes reverted back to a single flash, maybe got lucky. Ive been reading the above posts with great interest. Got a back-up valve for free since mine was under warranty. Something a major of an appliance like this cant barely go a year without working. Thank you for posting this ! 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. Also, is the setpoint continuously variable as the dial is turned, or are the labeled settings stepped and all there are? Wow, amazing! Only the technically adept or handy should do attempt this. These sensors, provide the fail-safe mechanism through which the, temperature control as well as water temperature. Follow these warnings exactly: 1. The clips stay on the wires. Glad you got it back going. So thanks to commenters earlier, before, and above. The only material needed is one short jumper or piece of wire. You will now need to restart the Pilot as before. Loreleafs procedure (5 January 2016) worked for me remove cover and short 2 pins with a screwdriver. Reverse the above steps to mount the new front onto the old back thats still hooked to the water heater. 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. My 83 year old dads water heater went out. Most Honeywell water heaters with electric gas valves need just 12 volts for the valve to work. When it calls for heat the damper opens and the pilot ignites but the main burner will not activate. And two finger-pressable connectors at the top. Feeling clean & grateful for hot water! I pulled the cover yesterday , left every thing hooked up. Picture:here. Some designers use whats called a super cap instead of a battery to preserve data for short periods of time. Now it is one-blinking again. Glad I found this post. Pilot is lit but the led will not blink red at all it, how to reset this valve. as the faint click was heard and the flashing light reappeared, it was now only blinking once! This worked for me, and saved me some money and headaches. Something to consider. The water heater would not work properly right out of the box. A day or so after install, I did raise the temp just a tad to 130. 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. Can cause severe injury, death or property damage. The two wires (red/white) pluged to the honeywell box front rightside, power the box, make sure the wires are not loose, refer to diagram, mine were loose had to reattach with tiny plyers. Tonight I came home to the 4 blink code again No problem Ill just reset it one more time to get us through showers tonight and replace it tomorrow. Make an offer: Pre-owned. 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!!! So, I decided to let it sit overnight and that did the trick for me. The new honeywell gas valve is completely electronic. THANK YOU! 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