John Wood Noritz N-069M_N-069S - Manual (Page 21)

21
Troubleshooting-1
Initial Operation
Unit does not attempt to ignite
when water is running. • Is water running?
• Check for reversed plumbing or crossed pipes.
• Check the water drain valve filter. (
p.20 )
Unit attempts to ignite but fails
Temperature
Hot water 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 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? ( p.20)
• Is the power button turned on?
• Are the gas and water supply valves fully open?
• (Using the remote controller) Is the water temperature
setting appropriate? ( p.12 and p.13)
• If the water supply temperature is high, it is possible
for the temperature to be higher than the temperature
set on the remote controller.
• 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 remote controller.
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.
• Are the gas and water supply valves fully open?
• (Using the remote controller) Is the water temperature
setting appropriate? ( p.12 and p.13)
• If the amount of hot water required is very high, it is
possible for the temperature to be lower than the temp-
erature set on the remote controller.
Decrease the amount of hot water passing through the unit
and the temperature should stabilize.
The water is not hot enough.
No water is available when
a fixture is opened. • Is the water supply cut off?
• Is the heater frozen?
The hot water is not the correct
temperature. • Is the hot water fixture sufficiently open?
• Reset unit and try again. There may be air in the gas line.
• Have a professional check the gas supply pressure.