Symptom
Start/
Stop.
Light
Water will not
ON
turn off.
ON
Appliance fails
ON
to produce hot
water when set
ON
on II/III heater
settings.
ON
Heater.
Probable.Cause
Setting.
I/II/III
Any
Inlet valve, solenoid, or start/
stop switch faulty.
Any
Supply pressure below 0.
bar.
II/III
Insufficient water supply.
II/III
P o s s i b l e f a i l u r e o f t h e
microswitch or thermal switch.
II/III
Heater Tank failure.
Possible.Remedy
Replace as necessary.
Contact local water company.
Check mains water static
pressure.
Contact local water company.
Check the continuity of the
microswitch or heater tank and
replace parts as necessary.
Replace.