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Honeywell WV8840B1109 temp control valve on water heater. Status light @ 4 blinks between 3 seconds indicating "high temperature shutdown" even though lighting pilot with water cold. .

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  • Robert Vlacancich Sep 12, 2013

    My Honeywell thermostat wv8840b1109 keeps the water hot, but doesn't cool down when we put it on vacation, or even pilot. The contractor that installed it has not returned my repeated calls. Is there a certified Honeywell representative in my area that will address my concerns? Thank you. My zip code is 35068; email: robcamvla@hotmail.com. Thank you

  • henry stein
    henry stein Apr 19, 2014

    I just repaired this issue today. I am guessing that the electronics needed a reset, so here is how to do that. Remove the wire that goes to the ignitor. Remoce the connector that goes down to the two terminal temp sensor. Unscrew the bottom Torx screw that holds the cover on. Pry off the top 2 plastic holders and remove the cover. Unplug the little 2-wire connector from the circuit board. If you can get it back on without removing the board, that is a good thing. Then count to 20 or so, and plug the connector back in and put everything back. Light the pilot, turn it up and it should start.

  • henry stein
    henry stein Apr 19, 2014

    I meant 3-wire not 2!

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II have exactly the same problem: Honeywell WV8840B1109 temp
control valve on water heater. Pilot is on, but the burner won't
no matter how high I turn the temperature knob. Status light blink
4, which by the controller is "high temperature shutdown" and has
nothing to do with the problem. The real problem is that the
computer chip in the controller has gone bad. Problem is solved by
changing a new gas control valve/thermostat. The old Honeywell
control valve uses pure mechanical stuff and was very reliable,
almost never has a problem. I don't understand why they switch to
this new electrical one which use the tiny voltage generated by
the thermopile to run, easy to break, because of the electric
chips, and is more expensive. The only reason I can think of is
that they want to get more money from our pocket.

Posted on Dec 18, 2013

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Posted on Jan 02, 2017

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SOURCE: my pilot light on the water heater won't stay lit

The thermocouple or gas valve needs to be replaced. Start with the thermocouple.

Good Luck

Posted on Dec 09, 2008

  • 659 Answers

SOURCE: How to install a new temp sensor Whirlpool electric water heater

The instructions for installing the sensor will probably included with the new part. Also, when you receive the part and actually see it, you will probably know where it will go. Sometimes, things like this happen even with new units. I have had bad thermocouples on brand new units right from the factory. It happens and unfortunately it happens to us sometimes. Good luck and if you get the part and still have trouble, contact them again. If you would have bought a GE (Rheem) unit, they would have sent a tech out to your house at no cost. I'm not a fan of Whirlpool water heaters.

Posted on Apr 02, 2009

  • 2692 Answers

SOURCE: Gas tankless water heater turns off during shower

Take the thermocouple out and match it up at any hard wear store. Maybe $10. Replace it .Make sure the flame is clean and hitting the rod in the center center. Ajust (Bend) accordingly.

Posted on Feb 23, 2009

  • 74 Answers

SOURCE: AO Smith water heater won't fire.

I bet your thermo couple is bad or your ports are clogged? How old is the unit?

Posted on Apr 16, 2009

john224
  • 1378 Answers

SOURCE: Natural gas hot water heater not stying lit

Probably a bad solenoid in the gas valve. Higher voltage of a new thermocouple keeps it open longer but it still fails over a period of time. Look into a new gas valve for the water heater.

Posted on Dec 17, 2009

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1 Answer

The pilot light on the water heater went out and the red light is blinking four times on the thermostat (Honeywell WV8860B1317). How do I get this to stop so that the pilot light can be relit?


The flashing light 4 times indicates high water temperature has activated the over heat sensor, and that the only remedy is to replace the gas control valve/thermostat.

Dec 08, 2014 | Water Water Heaters

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Is the honeywell wv8840B1109 like a smart meter. I was concerned after they installed this on my new water heater. It's basically an alarm for if the pilot shuts off. Seems awfully big to just be for that....


Thanks for photo link. Not a smart meter.
Just ordinary water heater gas control valve, with small circuit board to support error codes:
Copy following link for handy resources:
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent
http://www.thetankatwaterheaterrescue.com/forums/forum3/
http://waterheatertimer.org/How-to-replace-Honeywell-gas-control-valve.html
How the newer gas control valves are different: Old water heater had thermocouple which supplies very tiny current to gas control valve. When pilot light blows out, the thermocouple no longer sends tiny current and gas control valve shuts off gas to heater.
New gas water heaters have thermopile (just like modern furnaces and stoves), which is basically several thermocouples bunched together. So thermopile sends more current to gas control valve, and supplies enough current to power small circuit board. The circuit board records error events and issues simple error codes. If pilot blows out, then thermopile no longer sends current and gas control valve shuts off gas to heater.
Moreover, the new gas control valve can be repaired and replaced without removing from tank. So tank does not have to be drained... saving time and repair cost.
Gene

Aug 09, 2013 | Water Heaters

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Whirlpool/Honeywell hot water heater light flashes 5 then 7 times and won't light. Burner is clean and all contacts are good. Out of warranted.


Copy following link to troubleshoot by type of gas control valve, including directions for cleaning air intake screen, and or replacing gas control valve:
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html
http://www.thetankatwaterheaterrescue.com/forums/forum3/

7 flashes: Gas control valve might be bad.
4 flashes: FV overheat, clean air intake.
Soot indicates clogged air intake slowed combustion venting possibly causing overheating and lockout. Clean air intake screen located on bottom of unit.

Apr 17, 2013 | Water Heaters

1 Answer

Blinking red light


Copy following link to identify type of gas control valve, and error codes.
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent

With honeywell atmospheric gas control, steady blinking light indicates correct operation.
Read product manual, and perform regular maintenance as outlined in product manual.

Mar 25, 2013 | Water Heaters

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Pr sw failed to close


Troubleshoot by type of gas control valve
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent

Repeated 3 flash on power vented honeywell gas control thermostat means system in lockout.
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html

Repeated 3 flash on atmospheric-vent Honeywell gas control valve means temperature sensor failure.
Take apart gas control, and buy temperature sensor if sold separately at AO Smith dealer.
http://waterheatertimer.org/How-to-replace-Honeywell-gas-control-valve.html

Add a comment with more information

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Pilot light goes out when i release the button


Question posted under Reliance gas water heater.
Add comment for different brand.
Age of heater is unknown.
Status light indicates one of the Honeywell electronic gas control valve.
Status light not blinking indicates that water heater gas control not receiving electrical power for power vent models.
Or thermocouple is bad on non-power vent models
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent

Depending on model, and age, the thermocouple can be tested and replaced. Or entire burner assembly is replaced.
http://waterheatertimer.org/How-to-replace-thermocouple.html

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Led status 3 trouble shooting advice


More information is needed.
Water heater is not identified.
Add a comment with more information from label on side of tank.

If you have gas water heater, then open following links to identify gas valve, and download error code diagnostic and possible service manual:
http://waterheatertimer.org/How-to-adjust-water-heater-temperature.html#intelli
http://waterheatertimer.org/How-to-install-gas-water-heater.html#troubleshoot

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You have AO Smith tank-type power vent water heater with FVIR flame arrestor.
1) I believe this system has White Rodgers intellivent gas valve, with led indicator lights.
To test if valve is operational:
-NORMAL operating mode displays no lights on gas valve.
-Unplug unit from electrical outlet and plug back in. All lights on gas control should display for 1-5 seconds.
-Press BOTH Hotter and Colder temperature buttons for one second to 'wake up' the control, and release buttons and LED will display temperature.
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2) Open following link to identify gas valve and download possible service manual with error codes and testing procedure. Service manual is a large file and will probably not load on dial-up.
http://waterheatertimer.org/How-to-adjust-water-heater-temperature.html#intelli

3) Open following link for AO Smith manuals and service handbooks.
Shows same intellivent service manual, and shows manuals for power vent, but does not specifically list the GPS75 series
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4) Take a moment and rate answer:
And take advantage of fixya expert assistance live.
For a price, expert works with you while you work on water heater or any do-it-yourself project.
Fixya is always less expensive than a service call.

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AO Smith uses the Honeywell ICON gas valve with green indicator light.
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The gas control blinks the error code:
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http://waterheatertimer.org/pdf/Honeywell-Gas-Valve-LED-Codes-2000.pdf
http://waterheatertimer.org/BW.html#Temp
http://waterheatertimer.org/How-to-adjust-water-heater-temperature.html#intelli

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