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-   -   Water heater won't light (http://www.diychatroom.com/f17/water-heater-wont-light-89263/)

adfuhrer 12-10-2010 02:12 PM

Water heater won't light
 
I have a 6 year old AO Smith propane water heater, model #GPSH 50-101. The heater wont light by itself and shows an error code that the system is in lockout.If I unplug the unit from the wall and plug it back in it tries to light 3 times and shuts itself off and shows the same error code.If I unplug the 3 wires that go to hot surface ignitor and sensor and plug them back in,it will light and work great. Do I need to replace these parts or could it be something else?

SKIP4661 12-10-2010 02:59 PM

Try polishing the sensor with steel wool or a scotchbrite pad. Don't use any type of chemical cleaner.:thumbsup:


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