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Power
Symptom
Light
Low or no
ON
flow.
(cont...)
ON
ON
Operation of
ON
temperature
control
ON
has little or
no effect
ON
on water
temperature.
No change in
ON
temperature
between Low/
Medium/High
ON
setting.
Water will not
ON
turn off.
ON
Appliance
ON
fails to
produce
hot water
ON
when set
on Medium/
High heater
setting.
ON
Low
Heater
Flow
Low/
Light
Med/
High
OFF
Any
OFF
Any
OFF
Any
ON
Med/High
OFF
Med/High
OFF
Med/High
ON
Any
OFF
Any
OFF
Any
ON
Any
ON
Med/High
OFF
Med/High
OFF
Med/High
Probable Cause
Service tunnel or cover
n o t f i t t e d c o r r e c t l y
causing Start/Stop button
not to operate.
Flow valve faulty.
Heater tank excessively
scaled.
Flow valve faulty.
Heater tank failure.
Microswitch failure.
Insufficient mains water
pressure.
Possible failure of flow
valve, Microswitch, or
Heater Tank.
Flow valve, solenoid, or
Start/Stop switch faulty.
Supply pressure below
20 kPa (0.2 bar).
Insufficient water supply.
Possible failure of thermal
switch or microswitch.
Heater tank failure.
24
Probable Remedy
Check case inserts are
cut and fitted correctly.
Check services (electrical
or plumbing) are not
interfering with location of
service tunnel or cover.
Replace.
Replace. In hard water
areas, consider the use
of a water softener.
Replace.
Replace.
Replace.
C o n t a c t l o c a l w a t e r
company.
Use a suitable continuity
device to check the
c o n t i n u i t y o f t h e
microswitch or heater
tank and replace parts
as necessary.
Replace as necessary.
C o n t a c t l o c a l w a t e r
company. Check mains
water static pressure.
C o n t a c t l o c a l w a t e r
company.
Use a suitable continuity
device to check the
c o n t i n u i t y o f t h e
microswitch or heater
tank and replace parts
as necessary.
Replace.
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