Noritz tankless water heater - burner stays on with no demand
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Noritz tankless water heater - burner stays on with no demand

by Mitch
(Dallas, TX)

Just recieved my $270 gas bill which normally runs $25-$30 this time of year. The water heater is the only thing using gas at this time. I checked the unit in the attic and noticed the burner light was on with no demand in the house. I checked the gas meter and it was spinning like crazy. I turned off the power to the unit and the gas meter stopped. I'm sure this is some sort of issue with a relay. Anyone know how to troubleshoot / replace?

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Noritz tankless water heater - burner stays on with no demand

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Nov 19, 2011
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Check all shut off valves/spigots
by: Anonymous

You must have a leak or dripping faucet. Possible bad valve on your hot water valve for clothes washer or dishwasher.

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