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REGULAR CARE
TEMPERATURE PRESSURE RELIEF VALVE
This valve is near the top of the water heater and is essential for its safe operation. It is possible for the
valve to release a little water through the drain line during each heating period. This occurs as the water
is heated and expands by approximately 1/50 of its volume.
Continuous leakage of water from the valve and its drain line may indicate a problem with the water
heater (refer to “Temperature Pressure Relief Valve Running” on page 15).
WARNING: Never block the outlet of this valve or its drain line for any reason.
Operate the easing lever on the temperature pressure relief
valve once every six months. It is very important you raise
and lower the lever gently.
WARNING: Failure to do this may result in the water heater
cylinder failing.
If water does not flow freely from the drain line when the lever is
lifted, then the water heater should be checked by your nearest
Solahart Dealer.
The temperature pressure relief valve should be checked for
performance or replaced at intervals not exceeding 5 years, or
more frequently in areas where there is a high incidence of water
deposits (refer to “Water Supplies” on page 52).
EXPANSION CONTROL VALVE
In many areas, including South Australia, Western Australia and
scaling water areas, an expansion control valve is fitted to the
cold water line to the water heater. Water will flow from its drain
line during the heating period.
Operate the easing lever on the expansion control valve once
every six months. It is very important you raise and lower the
lever gently. The expansion control valve should be checked for
performance or replaced at intervals not exceeding 5 years, or
more frequently in areas where there is a high incidence of water
deposits.
COLLECTOR GLASS
Ensure the glass on your solar collectors is free of dust, salt spray or any other matter, which may
reduce the effectiveness of the solar collectors. If the collector glass becomes dirty, hose down or if the
solar collectors are accessible, wash the collector glass with water and a soft brush when the solar
collectors are cool. Have any trees trimmed which may shade the solar collectors.
GENERAL MAINTENANCE
The jacket of the water heater can be cleaned with a soft cloth and warm mild soapy water. Under no
circumstances should abrasive materials or powders be used.
SERVICING
For safe and efficient operation, the water heater should be serviced annually by your nearest Solahart
Dealer. Only genuine replacement parts should be used on this water heater.
Warning: Servicing of the water heater should only be carried out by authorised personnel.
water
heater
drain
line
lift until water
flows from the
drain line –
lower gently