23
Symptom
Start/
Stop
Light
Heater
Setting
I / II / III
Probable Cause
Possible Remedy
No change in
temperature
between I/II/III
settings.
ON
ANY
Insufficient mains water
pressure.
Contact local water company.
Possible failure of flow valve,
microswitch or heater tank.
Check the continuity of the
microswitch or heater tank and
replace parts as necessary.
Water will not
turn off.
ON
ANY
Inlet valve, solenoid, or start/
stop switch faulty.
Replace as necessary.
Supply pressure below 0.2 bar. Contact local water company.
Check mains water static
pressure.
Appliance fails
to produce hot
water when set
on II/III heater
settings.
ON
II / III
Insufficient water supply
Contact local water company.
P o s s i b l e f a i l u r e o f t h e
microswitch or thermal switch.
Check the continuity of the
microswitch or heater tank and
replace parts as necessary.
Heater Tank failure.
Replace.
