TROUBLE SHOOTING
Symptoms
Reasons
Gas valve not open
Gas valve half open
Air in the gas pipe
Remedies
Turn on main valve or
replace the gas
Turn on the main
valve
Several opening the
water inlet gas pressure
ignition
Contact the repairer to
check the gas pressure
valve
Turn on the water
supply main valve
Use after de-frozen
Call repairer to check
water pressure, then
clean the filter
Turn the temperature
and gas rods properly
Open the ventilation
hole to let enough
fresh air in
Replace the batteries
Contact the service
center
Contact the service center
Contact the service
center
Contact the service
center
Re-ignite for use if the
ventilation is good
Continuos 20 minutes
operation
Ignition needle
movement
Water control unit
failure
Heat exchanger clogged
Burner clogged
Power shortage
Insufficient fresh air
Water temperature
control mistake
Inadequate water
supply
Freezing
Cold water valve closed
High
Low
Unsuitable
Pressure
Gas
Indica
tor lights on
(r
ed)
Burning aft
er closing
the w
at
er v
alv
e
High t
emper
atur
e of
w
at
er a
t “high”
Lo
w t
emper
atur
e of
w
at
er a
t “high”
Bump
y noise in
ignition
Abnormal smell
Yello
w flame
Deflagr
at
e in ignition
No ignition aft
er
opening w
at
er v
alv
e
T
he flame goes out
Summary of Contents for HT351G12
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