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. Im an Innkeeper with few local options for help or assistance and will be following some great advice here. mwa-ha-ha-ha! About 5-10 minutes the 7 flashes reverted back to a single flash, maybe got lucky. Other suggestions? The seven blink disappeared shortly after that. Last year I had the blinks. My light is now white instead of red and the electronic board appears slightly different. and submit my receipt for them to reimburse the cost (up to $153). Either solution is unacceptable. Because of these differences, I would recommend NOT to only replace the board, but to replace everything! It is powered from a thermopile heated by the standing pilot flame. Maybe it should be Teflon coated if that interaction is suspect? Much obliged. Your expert advice was successful. The thermal switch on the hot water heater was broken. (White on the right and RED on the left as they would be with the cover on). The screw on the back of the control board is a Torx T-15 size. So that is an option for those that want one straight away in town, or they will reimburse you. This one broke after less that 1 year. Move the control to Hot and the Water Heater main burner should come on. They said they couldnt do anything about that. Read all these posts Sunday and tried the unplugging of the board then relighting pilot. Its two pins go through the board. Emptied tank and there wasnt much sediment. Free! Wish Id read deeper in the thread to try jumping the valve with wire. Most Honeywell water heaters with electric gas valves need just 12 volts for the valve to work. They said there was no way to re-set the board. Bam! Its been a week since I reset the valve and everything seems to be working fine and I did not drain the tank. DO NOT BUY THIS THERMOSTAT! The instructions are short, but they have very helpful tips and information. It may show now the normal 1 code or it may show a 7 or maybe a 2. detail describe please. Big thanks from MN! If it does, the fault should clear in a few seconds. 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. This is a BRAND NEW Honeywell Gas Water Heater Control Valve. Neither worked, the second board is now dead. When I contacted Rheem again, without hesitation they said they were Fed-Exing me a new valve. Took the board out and just touched everything with the cross wire and let it sit. Cheers very much, Tyler and yall!! Be sure the pilot stays on before continuing. I ignited the pilot and set the temperature but then got the 4 Flash code. When I put it back in it blinked 7 times. blue light 65 . Had to pay 30.00 shipping. they refused to sell me a new control///, i will not buy awhirlpool; any thing again////////////. Could sediment do this? Oh and THISis what it looks like in the little window when your BURNERSare running (water heater is heating). I replaced the Assy Unit thermocouple with the pilot lightNOW it flashes 7 times with 3 second pause. Not only that, but people return their old ones, and parts of them at least can probably be reused in new hundred-plus dollar valves. upstairs. I did order free replacement the part and went for the free ground ship to Calif as well as i had faith in you guys thatthe tips would work before the part got here. Contemplated telling my wife and child to go take a ride around the block while I finished it up, but was confident everything was solid and ready. This is the second time I have had the dreaded four blink failure in a 30 Gal. No flashing lights, no pilot light, nothing. On one end make two tiny wraps to fit over the left and right pins on the valve under the cover like described elsewhere. In case you havent seen one before, its called a flat-bladed screwdriver.. Holy Crap DB! Heater is only 7 months old. I must say the internet is a life saver for problems like these. Tankless sounds good to me, but Im not an expert just another hapless victim who has learned from experience one more thing not to do. $30 plus tax and I will roll up my sleeves and attempt to do this-I CAN DO THIS (I think) In the mean time I will be stinky at work and my hair will serve as grease for deep frying. Ive had my Rheem 7 months . Any suggestions? Whenthisbabyhits88mphYourgonnaseesomeseriousShit, http://www.midlandhardware.com/157481.html?gclid=CNjXnayo0b0CFROVfgodKgsA3A#.U0QkZfldV8E, https://www.flickr.com/photos/7428166@N07/14153292543/, https://www.flickr.com/photos/7428166@N07/13946581980/, https://www.flickr.com/photos/7428166@N07/14129889951/, https://www.flickr.com/photos/7428166@N07/13946540277/, http://hometips.me/Mar/How-to-test-and-replace-Honeywell-gas-control-valve.pdf, https://www.flickr.com/photos/86570218@N06/17486404251, Home Tips: How Do I Remove A Stubborn Element From A Water Heater?. no gas pressure would indicate the heater has been shut down and the error code is released? 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. This WORKS! Get a contractor model. Worked for me waiting to see if burner shuts off ENJOY, BIG BIG thanks to you, it worked i fixed it. I am calling the plumber who installed it. I too thought no big deal to turn my water heater up ONE NOTCH!!! The WT8840 Water Heater Control is designed for use in Standing Pilot applications using an immersion well for water temperature sensing. Honeywell rio ceiling fan, brushed nickel finish, 54 inch honeywell wv8840b1109 manual Reverse the above steps to mount the new front onto the old back thats still hooked to the water heater. Turn off the gas, just to be on the safe side, even though were not going to be messing with the pipes. Thanks all and internet! HELP !! I want to send you a gift..paypal?? Pull the three wire connector off the circuit board by pulling it straight out. Just lit the pilot again and set the temperature!! NEVER TO BE PURCHASED AGAIN. By the way, the 3 year warranty expired 3 week ago. The water heater had supposedly over heated, even though I had never had it set to anything but low in the 3 years I have had it. While most of it looks similar, I think the subtle differences incorporate a long(er) term fix. Now there is no danger of releasing gas. Just came home one day and the pilot light was out (this is the second time). (I realize this is way after the fact but just adding some personal experience) light the pilot and you still get the 7 flashes; however the water heater kicks back on and gets back up to temperature and shuts off as normal and you will see that your light now only flashes 1 time every 3 or 4 seconds. 2pos honeywell spst usew. This time I left the knob in the pilot position for 10 minutes. Just one stinking notch! Do you know if the Rinnai is any better than the Jaccuzi? > little white reset button doesnt seem to have any effect!?! 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). Includes an integrated NTC temperature sensor. I suspect it to be calcium and salts. Thank you all for your help. 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. Amazing! any help would be welcome. I initially did unplug everything and flushed the tank there was some residue and sediment not a ton but apparently enough to confound the sensor. No battery, no removing of circuit board, just a short jumper wire. THANK YOU! Takes one screw driver to unscrew the one screw on the bottom of the controller. The original red light gas valve broke after 2 years. There have been several of us who have successfully brought this Honeywell water heater controller back to life. While I didnt have any leaks, I was sweating bullets during the testing and first fire up of the furnace. and found a guy that removed the board allowing the capacitors to discharge fully, (just by removing the board). After less than 4 yrs of having the Whirlpool water heater, I got 4 flashes. You need to drain the tank completely because the valve sensor is about one inch diameter probe that screws into the side of the tank from the back of the valve. I was ready to take the circuit board into work and try to reprogram it through what appears to be a serial port (TX RX pins). This crap adds $15,000+ to our new automobiles. The WT8840 is powered from a thermopile heated by the standing pilot flame. Tried taking the cover off, unplugging connectors, pushing the pilot button with the connector plugged in, not plugged in, still got nothing. Said any time they shipped something it would be 10, 20, or 30 dollar charge. It was enough hot for a fairly comfortable shower actually. I dont know this for a fact but the low setting should be somewhere around 100F. It takes a T-15 screwdriver to remove the cover. 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. Thank you Tyler and all the responses. 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. The WT8840 water heater control from Resideo is designed for use in standing pilot applications using an immersion well for water temperature sensing. Honeywell said it is my fault because I failed to drain the sediment. Where is it located exactly? Here is the simple fix. You can save delay and $hundreds in plumber fees by fixing the part thats gone on strike. Hope this doesnt keep happening. I had to be transferred to water heater division and wait on hold a while but it was well worth it.). 3: Snap the cover back onto the heater (so you can light the pilot-light). It is a Honeywell Reliance 9007884 Series 300. [] research briefly mention entertaining ? Now the light changed from flashing 4 times to flashing 7 times. This should at least get you hot water and time to get another controller from like Amazon. It is interesting to note that the water remained lukewarm with just the pilot lit over the past several days. So I called and paid the $30 to get a new one delivered the day after Christmas. Bought my Whirlpool at Lowes. limit (Temperature Cut-Out [TCO]) function. Thanks again to everyones input you all are a life saver! On relighting, I got the dreaded 4 blinks. A few days ago I noticed that the combustion was very loud, like the flame was pulsating or something (I didnt know I had a pulsejet at home). Voltage Minimum: 350 mV dc, open circuit. On the board? Resideo WT8840B1500 - WT8840 Water Heater Gas Valve Control, NG - 2" Spud, 5" W.C.- WATER HEATER GAS VALVE, STANDING PILOT WITH PIEZO, SETPOINT 55-155F, SPUD LENGTH = 2", BRACKET= CENTERED, REGULATOR SETTING= 5" W.C., GAS TYPE=NATURAL GAS <br><br> The WT8840 series is the Water Heater Control for trade use to replace WV8840 valves used in AO Smith and Bradford White Water Heaters. No brown or other weird looking water. detected: When this happens after the four flashes, it seems like this is saying something like, There has been a fault detected, and there is no fault any more. In other words, there was a fault and it went away. I called Whirlpool customer service, got the replacement valve for $30 cost of the shipment. Should be some code or combination of codes, possibly including a 7. Hey just wanted to say a BIG thank you to you guys for the reboot reset tips the jumper wire to all points worked best for me! Im looking for a replacement LPG gas control in Mexico (Im close to the border). Back in business again. I told them I had four flashes and the serial number. I did the same thing but it immediately returned to four flashes. The valve is known to be defective and maybe they will help ? 4:Follow directions to lite the pilot-light. But they knew nothing about that. step by step please for dummies. Tom. Flushing the tank regularly prevents many problems. At this point the flashing light went to the Heartbeat flash (call for heat), the exhaust flap opened and the ignitor lit the burner. Awesome articles you post on your blog, i have shared this article on my facebook. Resetting the #$%@!! I received the new valve and noticed a few differences. this will also help the starter get a good ground to make a proper spark. Ernie. 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