Mira Play 8.5 kW Installation & User Manual page 23

Symptom
No hot water from
shower, with the
controls in any
position.
S h o w e r
t e m p e r a t u r e
cycles between
hot and cold.
All the following remedies must be performed by a competent tradesperson!
No hot water from
the shower, with
controls in any
position.
Heater
Setting
Power
Low/
Light
Med/
High
ON Med/
High
ON Med/
High
ON Med/
High
ON Med/
High
ON Med/
High
ON Med/
High
ON Med/
High
Probable Cause
Other water outlets
are being used during
showering, causing the
water pressure to drop
below the minimum
requirement.
The water pressure
is below the minimum
required.
The temperature is set
too high. This is causing
the thermal switch to
turn off the heating
element to reduce the
water temperature.
The temperature is set
too high. This is causing
the thermal switch to
turn off the heating
element to reduce the
water temperature.
Insufficient mains water
pressure.
Failure of the pressure
switch, microswitch or
thermal switch.
I n t e r n a l w i r i n g
connection failed.
23
Possible Remedy
Make sure the other
water outlets, such as
a washing machine or
dishwasher, are not in
use during showering.
Make sure that the
incoming water supply
isolating valve(s) are
completely open. If the
fault persists, contact
the shower installer.
Turn the temperature
control anticlockwise
to reduce the water
temperature.
Turn the temperature
control anticlockwise
to reduce the water
temperature.
Do not tamper with the
thermal switch.
Contact local water
company.
Check the continuity
of the switches, using
a suitable continuity
m e a s u r i n g d e v i c e .
Replace the switches
as necessary.
Check the integrity of the
internal wiring.
(continued).....