Fault Diagnosis - Kohler Mira Sport Thermostatic 9.0 kW User Manual

If the malfunction has not been detailed in the fault finding table or it was not possible to
correct the malfunction, professional assistance may be required. A more detailed fault finding
process is included in the Installation Guide for use by qualified, competent personnel only.
Start/Stop
Symptom Light is
ON or OFF
Shower fails
to operate.
OFF
Shower
cycles from
hot to cold.
Unable to
select a
cool enough
shower.
Low or no
flow.
Operation of
Temperature
Control
has little or
no effect
on water
temperature

FAULT DIAGNOSIS

Power
Control
Position
ANY
ECO/
ON
HIGH
ON ANY
ON ANY
ECO/
ON
HIGH
Possible Cause
Isolator switch in the off
position.
Fuse blown or MCB/RCD
tripped, indicating possible
electrical fault.
Showerhead blocked.
Water pressure below
minimum required for
shower operation.
Temperature control or
power control setting too
high.
Due to the rise in mains
water supply temperature,
the heater setting may be
too high
Showerhead blocked.
Hose kinked or blocked
Other outlets (e.g. toilet,
garden hose, washing
machine, etc.) drawing
water while the shower is
being used
Showerhead blocked.
Hose kinked or blocked
7
Possible Remedy
Switch on electrical supply
via the pullcord or wall
mounted switch.
Renew the fuse or reset
the MCB/RCD. If fault
persists, contact your
installer.
Remove and clean.
Make sure incoming mains
water stopcock and/or
shower isolating valve is
fully turned on.
Turn the power control
to Eco or turn the
temperature control until
a cooler temperature is
achieved.
Turn the power control
to Eco or turn the
temperature control until
a cooler temperature is
achieved.
Remove and descale
Showerhead
Check hose and replace
if necessary, see section -
'USER MAINTENANCE'.
Turn off other appliances
whilst shower is in use.
Remove and descale
Showerhead
Check hose and replace
if necessary, see section -
'USER MAINTENANCE'.