31
Malfunction
Cause
Remedy
Check integrity of
internal wiring.
Poor internal wire
connections.
Shower cycles
hot and cold.
The temperature is set to
an unsafe level. To protect
the appliance, a fixed
temperature thermal switch
is incorporated that cuts
the power to the heater
tank at too high a
temperature.
Turn the temperature
knob sufficiently
anticlockwise to
increase the water flow
and prevent operation of
the thermal switch.
DO
NOT
tamper with the
thermal switch.
Appliance fails to
produce hot water
in any switch
position.
Electrical supply isolated
at double pole switch (the
pull-cord).
Switch on.
Fuse 'blown' or MCB/RCD
tripped - indicating an
electrical fault e.g. heater
tank element failure.
Correct the fault and
renew the fuse or reset
the MCB/RCD.
Renew the heater tank.
Insufficient water supply
pressure.
Contact local water
authority/undertaker.
Possible failure of the
microswitch or thermal
switch.
Use a suitable continuity
measuring device to
check the continuity of
the microswitches or
thermal switch and
renew parts as
necessary.
Handset spray plate
blocked.
Remove and clean/
replace, refer to
Maintenance
in the
shower fittings I,O & M
guide.
