23
Symptom
Power
Light
Low
Flow
Light
Heater
Setting
I / II / III
Probable Cause
Possible Remedy
Ope ra tion of
t e m p e r a t u r e
c o n t r o l h a s
l i t t l e o r n o
effect on water
temperature.
ON
ON
II / III
Showerhead or inlet ¿lter
blocked.
Remove and clean.
OFF
Inlet valve faulty.
Replace.
Heater tank failure.
Replace.
Microswitch failure.
Replace.
No change in
t e m p e r a t u r e
between I/II/III
settings.
ON
ON
ANY
Insufficient mains water
pressure.
C o n t a c t l o c a l w a t e r
company.
ON
OFF
ANY
Possible failure of flow
v alv e, mi cros w itc h or
heater tank.
Check the continuity of
the microswitch or heater
tank and replace parts as
necessary.
Water will not
turn off.
ON
OFF
ANY
Inlet valve, solenoid, or
start/stop switch faulty.
Replace as necessary.
ON
ON
ANY
Supply pressure below
0.2 bar.
C o n t a c t l o c a l w a t e r
company. Check mains
water static pressure.
Appliance fails
to produce hot
water when set
on II/III heater
settings.
ON
ON
II / III
Insuf¿cient water supply.
C o n t a c t l o c a l w a t e r
company.
ON
OFF
Possible failure of the
microswitch or thermal
switch
C o n t a c t l o c a l w a t e r
company.
Heater Tank failure.
Replace.
