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SAVE A SERVICE CALL
• Thermostat setting
Ensure the thermostat setting is appropriate. You may choose to have your electrician adjust the
thermostat upwards to gain additional hot water capacity when boosting. Refer to
“Temperature
Adjustment”
on page 5.
Warning: Hotter water increases the risk of scald injury.
• Water heater size
Do you have the correct size water heater for your requirements? The sizing guides in the sales
literature and on the Solahart website
(www.solahart.com.au) suggest average sizes that may be
needed.
WATER NOT HOT ENOUGH
You may find that due to heavy hot water usage or low solar energy gain the water temperature may be
lower than normally expected. You will need to carefully plan your use of the booster heating unit to
boost the water temperature on such occasions.
A lower water temperature may also be noticed in the morning when the booster heating unit has not
been switched on overnight. This in particular may be experienced during periods of low solar energy
gain, or if there has been heavy hot water usage the previous night.
TEMPERATURE PRESSURE RELIEF VALVE RUNNING
• Normal Operation
15
It is normal and desirable this valve allows a small
quantity of water to escape during the heating cycle.
However, if it discharges more than a bucket full of water
in 24 hours, there may be another problem.
• Continuous dribble
Try gently raising the easing lever on the relief valve for a
few seconds (refer to
“Temperature Pressure Relief
Valve”
on page 12). This may dislodge a small particle of
foreign matter and clear the fault. Release the lever
gently.
• Steady flows for long period (often at night)
This may indicate the mains water pressure sometimes
rises above the designed pressure of the water heater.
Ask your installing plumber to fit a pressure limiting valve.
NEVER replace the relief valve with one of a higher pressure rating.
• Heavy flows of hot water until the water heater is cold - then stops until water reheats
The water heater must be switched off at the isolating switch or switchboard. Phone your nearest
Solahart Dealer to arrange for an inspection.
EXPANSION CONTROL VALVE RUNNING
If an expansion control valve is fitted in the cold water line to the water heater
(refer to page 28) it may
discharge a small quantity of water instead of the temperature pressure relief valve on the water heater.
The benefit is that energy is conserved as the discharged water is cooler.