Fault Diagnosis
If any of the following conditions occur, isolate the electricity and water supplies and contact
Kohler Mira Customer Service.
• If the case is damaged or the cover is not correctly tted and water has entered
the shower case.
• If the shower begins to make an odd noise, smell or smoke.
• If the shower shows signs of a distinct change in performance indicating a need
for maintenance.
Only use genuine Kohler Mira replacement parts.
If you require a Mira trained service engineer or agent, please see “Customer Service” on
the back cover of this guide.
Symptom Cause Recommended Action
Shower fails to operate. Electrical supply
isolated.
Switch on shower via pull cord or
wall switch.
Fuse blown or MCB/
RCD tripped.
Reset the MCB/RCD. Replace
fuse. If fault persists, contact your
installer.
Low water flow.
No water flow.
Hose or shower head
blocked. Filter blocked
or removed.
Remove and clean. Check hose
and replace if necessary. Refit all
parts correctly.
Water supply isolating
valve set too low or
turned off.
Fully open isolating valve.
Air in system. Refer to “Commissioning” and
bleed air by removing filter.
Insufficient water
pressure or water flow
for shower operation.
Gravity fed system, minimum
pressure 0.8 kPa.
(0.008 bar / 80mm head.)
Flow Valve faulty. Contact your installer to replace.
Heater Tank excessively
scaled.
Contact your installer to replace.
Consult your installer about fitting
a water softener for hard water
areas.
Important! The showerhead must be descaled regularly. Keeping the shower spray clean
and free from limescale will ensure that your shower continues to give the best performance.
Limescale build up can restrict the ow rate and may cause damage to your shower.
The shower hose should be inspected periodically for damage or internal collapse. Any
restriction to the water ow from the showerhead and may cause damage to the shower.
Remove the shower hose from the shower, inspect and replace the hose if necessary.
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