Fault Diagnosis - Mira Alero Installation And User Manual

The trouble shooting information tabled below gives details on probable causes
and remedies should difficulties be encountered whilst the shower is in operation.
Warning! There are no user serviceable components beneath the cover of the
appliance. Only a competent tradesperson should remove the front cover!
Symptom Start/
Stop
Light
Appliance Fails
to operate
OFF
Shower cycles
from hot to cold
U n a b l e t o
s e l e c t a
cool enough
shower.
Unable to
select a
hot enough
shower (cold
only)

FAULT DIAGNOSIS

Heater
Setting
I / II / III
Electrical supply isolated at
double pole switch.
ANY
Fuse blown or MCB/RCD
tripped, indicating possible
electrical fault.
Showerhead blocked
W a t e r p r e s s u r e b e l o w
minimum required for appliance
operation.
ON II / III
Temperature dial or Heater
setting too high.
Thermostatic mechanism is
faulty or damaged.
Due to the rise in mains water
supply temperature, the Heater
ON III
setting may be too high.
ON I / II Power control not on high
Temperature control on cool
setting
Water pressure below
minimum requirement for
shower operation
ON ANY
Showerhead blocked
Hose kinked or blocked
Restriction in Showerhead
mode
Probable Cause
21
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
w a t e r s t o p c o c k a n d / o r
appliance isolating valve is
fully turned on.
Turn the heater selector
knob to setting II or turn the
temperature control until a
cooler temperature is achieved.
Replace.
Turn the heater selector knob
to II and adjust the temperature
c o n t r o l u n t i l a s u i t a b l e
temperature is achieved.
Turn the power control to high
Turn the temperature control
until a hotter temperature is
achieved
Make sure incoming mains
water stopcock and / or
shower isolating valve is fully
open
Contact water company
Remove and descale
showerhead
Check hose and replace
if necessary, see section -
'USER MAINTENANCE'.
Select different Showerhead
mode