Mira Extreme Thermostatic Installation And User Manual page 30

Blend temperature unstable.
Drip from shower head.
Pump does not operate.
Pump speed does not change.
Low or no water flow.
Pump does not stop.
Inlet filter blocked.
Isolating valve partially closed.
Spray plate blocked.
Solenoid valve defective.
Electrical supply failure.
PCB failure.
Motor overheated, thermal
switch operated.
PCB failure.
Isolating valves closed.
Inlet filters blocked.
Check valve fitted incorrectly.
Appliance sited above cold
water storage cistern.
Plumbing system fault (airlock).
Blocked spray plate.
Microswitch failure.
PCB failure.
30
Clean filters.refer to section:
'Maintenance'.
Open valve.
Clean spray plate. Refer to
the Installation and User guide
supplied with the shower
fittings.
Renew the solenoid assembly.
Check power supply.
Renew the PCB.
If the thermal switch operates
repeatedly contact Kohler Mira
for further advice.
Renew the PCB.
Open valves.
Clean filters, refer to section:
'Maintenance'.
Check, refer to section:
'Maintenance'.
The appliance is not suitable
for negative head installations,
refer to section: 'Installation
Requirements'.
Reroute the pipework to avoid
airlock.
Clean spray plate. Refer to
the Installation and User guide
supplied with the shower
fittings.
Renew the harness assembly.
Renew the PCB.