Troubleshooting Guide
This guide should be followed in case of failure of the appliance to operate correctly.
For more information, please refer to Service Manual or contact service provider.
A B C D E H F H I J
Overall fuel gas valve is
unopened
Malfunction
Causes
Open overall valve of
gas supply
Water supply valve is
unopened
Improper regulation
method of water
temperature
Improper
Operation
Open valve of water
supply
Inadequate fresh air
supply
Improve ventilation and
ensure air supply
Air exiting inside fuel
gas pipe
Repeat opening and
closing water knob for
several times
Improper position of
water switch
Turn water knob to
hot water point
Electrical leakage
protective switch is not
restored
Restoration of electric
leakage protective
switch
Enlarge gas volume,
reduce water volume
Reduce gas volume,
enlarge water supply
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Surroundings Fuel gas
pressure
Water
pressure
Too low
Check if gas rubber pipe
twists or not
Too high
Regulate pressure relief
valve, reduce overall
gas supply
Too high
Reduce water supply
Too low
Utilize when water
pressure recovers
to normal
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