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Natural Gas Direct Vent Hot Water Tank Troubleshooting
I have a Giant (Green Foam) Natural Gas Direct Vent Hot Water Tank Model: UG50-62. Last evening I noticed the house seemed cool even though the thermostats were callin for heat and did not hear the tank starting for an extended period. Decided to turn on a tap and no hot water, figures late night and cold out - anyway the Thermostat pad had all the lights on a blinking, after checking the manual and finding the one that seemed to match out of 16 different possible light combinations it showed this:
Condition: All the lights are on
Cause: The internal circuit
Remedy: (1) Turn off the power to the heat for 10 seconds, check polarity and turn back on.
(2) If the above step did not clear the error, replace the gas control value.
** Note: Check polarity, not sure what this means so I skipped this step.
The tank and system have been running since doing this last night. Main question is this just something that can happen from time to time with tanks, this one was installed by professional plumbers 11 months ago. With the Christmas season coming up it will be near impossible to get a service call if this happens again. I will of course call someone if it does but is this indicating that some part IE: Gas contral value is failing. I had the tank running at a temp of 120 F, bumped it up to 125 F. Thanks for any info on this, much appreciated.