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If its 1 blink every 3 seconds its normal operation. Otherwise, this is the meaning of the various blinks:
No blinks = no poilet light (not enough power (in millivolts) to keep it lit. 2 flashes = insufficient voltage (in millivolts) to gas valve. 4 flashes = high water temperature (over heat sensor activated. 5 flashes = water temperature sensor failure. 7 flashes = gas control valve / thermostat failure. 8 flashes = Only occurs if the gas control valve or Temperature knob has been turned off And the thermocouple continued to produce electric power. 9 flashes = Combustion chamber temperature sensor open or shorted. 10 flashes = LDO occurrence was detected in the combustion chamber (contaminants).
there might be a problem. flashing lights meaning there is something wrong in either wiring or heating coil. some are equiped with manualy reset system. or some solinoid or contactor or a motorized valve. scaled water sensor or stuck float swithes.
The flashing light is a trouble sequence light. Find your manual to see what 4 flashes means. It's usually attached to the side of the water heater tank. Try a quick fix by unplugging the power vent and see what happens.
If you still have a warranty, call the manufacturer and they will send you a new brain for FREE, You just half to pay the shipping. I just replaced one on my Mother-in-laws. They stated that there were problems with the brains. It is very simple to replace.Just make sure you have the breaker turned off.
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