32
Troubleshooting-1
Initial Operation
Unit does not attempt to ignite
when water is running.
• Check for reversed plumbing or crossed pipes.
• Check the water drain valve filter. (
pages 29, 30)
Unit attempts to ignite but fails
DHW Temperature
• Reset unit and try again. There may be air in the gas line.
• Have a professional check the gas supply pressure.
DHW is not available when a
fixture is opened.
• Are the gas and water supply valves fully open?
• Is the water supply cut off?
• Is the hot water fixture/faucet sufficiently open?
•
Is the gas being cut off by the gas meter?
(Can other gas devices such as stoves be used?)
• (For LP) Is there enough gas in the tank?
(Can other gas devices such as stoves be used?)
• Is the water drain valve filter clogged? (
page 29)
• Is the power button turned on?
• Can the sound of the pump be heard?
If not, there may be a malfunction.
Contact your installer or a qualified service technician.
• Are the gas and water supply valves fully open?
• Is the water temperature setting appropriate? ( page 14)
• If the water supply temperature is high, it is possible for the temperature
to be higher than the temperature set on the Operation Display.
• If only a small amount of hot water is demanded, it
is possible for the temperature to be higher than the
temperature set on the Operation Display.
The water is too hot.
• Have you allowed enough time for the cold water in the
pipes to drain out?
Water takes time to become hot when
turning the hot water fixture/faucet.
No DHW is available when
a fixture is opened.
• Is the water supply cut off?
• Is the heater frozen?
The DHW is not the correct
temperature.
• Is the hot water fixture/faucet sufficiently open?
• Are the gas and water supply valves fully open?
• Is the water temperature setting appropriate? ( page 14)
• If the amount of hot water required is very high, it is possible
for the temperature to be lower than the temperature set on
the Operation Display.
Decrease the amount of hot water passing through the unit
and the temperature should stabilize.
The DHW is not hot enough.
Summary of Contents for GHQ-C3201WX-FF PB US
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