Mira Sport Thermostatic 9.0 Installation & User Manual page 23

Power
Symptom
Light
On
No change in
temperature
between Low/
M e d / H i g h
Off
settings.
On
Water will not
turn off.
On
On
A p p l i a n c e
f a i l s t o
produce hot
water when
On
set on Med/
High heater
setting.
On
Heater
Low
Low/
Flow
Med/
Light
High
On Any
Off Any
Off Any
On Any
On Med/
High
Off Med/
High
Off Med/
High
Probable Cause
Insufficient mains
water pressure.
P o s s i b l e f a i l u r e
of microswitch or
heater tank.
Inlet Valve, Solenoid,
or Start/Stop switch
faulty.
Supply pressure
below 20 kPa
(0.2 bar).
Insufficient water
supply.
Possible failure of
the Microswitch or
Thermal switch.
Heater Tank failure.
23
Possible Remedy
Contact local water
company.
Check the continuity
of the microswitch
or heater tank and
replace parts as
necessary.
R e p l a c e a s
necessary.
Contact local water
company. Check
mains water static
pressure.
Contact local water
company.
Check the continuity
of the Microswitch
or Heater Tank and
replace parts as
necessary.
Replace.