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Control in lockout - Water Heaters

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Unplug the water heater. wait a few minutes.
While you wait, if you have the manual check it for something called error codes if not don't worry.
plug the water heater back in for normal operation. Let it cycle and try to light. When it fails to light you shuld see a the lights on the control blinking in a distinct pattern, or depending on the unit, some other type displyed error code. look for this code in your manual. If it is not in the manuel or you don't have it you will have to call the manufactuers techinal support for the explanation of the code and a possible solution make sure you have the serial and model numbers. Or look for the installation manual online. Or come back here and post your findings with all relevant info as to make, model, year etc.
Please keep in mind that a lot of things can cause this to happen. Like, for instance, many newer water heaters have a moisture sensor somewhere near the bottom that will lock it out if moisture is detected. This usaualy requires a code to be entered into the control box to re-set the unit. This is just one example.

Posted on Oct 08, 2009

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How do i reset the lockout


Push and hold the button for 60 seconds. It is in customer lockout because it was pressed more then 3 times.

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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.
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Repeated 3 flash on atmospheric-vent Honeywell gas control valve means temperature sensor failure.
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Richmond powervent model 6G40PV-40F Lockout 4-2 blink. What's wrong. What do I replace to fix?


1) Rheem-Richmond does not post service manuals:
Copy following link to identify service manual by type of gas control valve:
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent

2) For lockout, the air intake might be clogged or combustion parts dirty, causing overheating which will break TRD glass vial. Gas control may need to be replaced. Reset gas control by rotating knob to lowest temp for at least 6 seconds.
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html

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Rheem Intelli-vent intermittently goes in lockout mode


Rheem does not post service manuals.
However AO Smith has posted relevant service manual:
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent

Have you cleaned the air intake located under combustion chamber, and inspected for broken glass vial?
Rheem FVIR system uses glass vial that breaks if combustion air is slowed, and resulting combustion causes slow-moving venting of hot gasses, causing overheating that breaks glass vial.
http://waterheatertimer.org/How-to-repair-Rheem-FVIR.html

Check gas pressure.

Replace gas control valve:
http://waterheatertimer.org/pdf/How-to-replace-water-heater-gas-valve.pdf

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1 Answer

Pilot light will not stay lit on GE 40 gal. gas water heater tank


You have tank-type gas water heater:
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Open following links for troubleshoot resources:
http://waterheatertimer.org/How-to-install-gas-water-heater.html#troubleshoot

http://waterheatertimer.org/pdf/Pilot-light-will-not-stay-lit.pdf
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http://waterheatertimer.org/images/Test-water-heater-vent-1400.jpg

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The FV lockout varies by brand of heater... some require simple cleaning, while Rheem requires part
Following link has rundown for various models:
http://waterheatertimer.org/troubleshoot-flammable-vapor-on-gas-water-heater.html

Burner going out could be FV lockout, low gas pressure, or gas control valve thermostat:
Following link has troubleshoot for pressure and various models of gas control:
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