22
GENERAL TROUBLESHOOTING
~ TEMPERATURE and AMOUNT OF HOT WATER ~
PROBLEM POSSIBLE
SOLUTIONS
It takes long time to get hot water at
the fixtures.
The time it takes to deliver hot water from the water
heater to your fixtures depends on the length of
piping between the two. The longer the distance or
the bigger the pipes, the longer it will take to get hot
water.
The water is not hot enough.
Compare the flow and temperature. See the chart
on p. 28.
Check cross plumbing between cold water lines
and hot water lines.
Is the gas supply valve fully open? (p. 17)
Is the gas line sized properly? (p. 10)
Is the gas supply pressure enough? (p. 11)
Is the set temperature set too low? (p. 18,19)
The water is too hot.
Is the set temperature set too high? (p. 18,19)
The hot water is not available when
a fixture is opened.
Make sure the unit has 240V 50Hz power supply.
If you are using the remote controller, is the power
button turned on? (p. 18,19)
Is the gas supply valve fully open? (p. 17)
Is the water supply valve fully open? (p. 17)
Is the filter on cold water inlet clean? (p. 21)
Is the hot water fixture sufficiently open to draw at
least 3.0l/min through the water heater? (p. 18)
Is the unit frozen?
Is there enough gas in the tank? (for propane)
The hot water gets cold and stays
cold.
Is the flow rate enough to keep the water heater
running? (p. 18)
Is the gas supply valve fully open? (p. 17)
Is the filter on cold water inlet clean? (p. 21)
Are the fixtures clean of debris and obstructions?
Fluctuation in hot water temperature.
Is the filter on cold water inlet clean? (p. 21)
Is the gas line sized properly? (p. 10)
Is the supply gas pressure enough? (p. 11)
Check for cross connection between cold water
lines and hot water lines.