22
Symptom
Cause
Rectification
(d) Pump motor
thermal switch
tripped.
1. Allow the motor to cool, up to
1 hour.
2. Check the ambient air temperature
around the pump does not exceed
40
o
C.
3. Make sure adequate free ventilation
is provided (minimum clearance
of 80 mm around all sides of the
pump).
(e) Further pump
motor fault.
1. Contact
Mira Customer Service
Dept.
Details on the back cover of
this guide.
6.
Leak from the
pump housing.
(a) Seal worn/
damaged.
1. Contact
Mira Showers
Customer
Service Dept.
to arrange service
visit. Details on the back cover of
this guide.
Note Regarding Check Valves.
Fitting a check valve is a secondary measure,
initially the cause of water surge should be investigated and rectified. The single
check valve should be of spring-loaded pattern and fitted in the discharge pipework.
This may increase the minimum head pressure required to operate the flow-switch.
MAINTENANCE
General
Mira products are precision-engineered and should give continued superior and safe
performance. Providing that the pump has been correctly installed and operated as
advised in this booklet, difficulties should not arise.
1.
The water supplies to the pump must be isolated if the product is not
to be used for a long period of time. If the pump or pipework is at risk
of freezing during this period, they should also be drained of water
(e.g. winter holiday).
2.
The pump should not be left unused for extended periods of time after
being installed. Run the pump with cool water for at least 5 minutes
every 4 weeks to prevent scale build up from seizing the internal
mechanism. This particularly applies to locations of infrequent use
(e.g. guest bathrooms).
