13
SAVE A SERVICE CALL
Check the items below before making a service call. You will be charged for attending to any condition or
fault that is not related to manufacture or failure of a part.
NOT ENOUGH HOT WATER (OR NO HOT WATER)
Is the electricity switched on?
Inspect the isolating switch marked “HOT WATER” or “WATER HEATER” at the switchboard and the
isolating switch at the water heater and ensure they are turned on.
Check the fuse marked “HOT WATER” or “WATER HEATER” at the switchboard.
Is a timer installed?
If a timer has been installed, ensure sufficient time has been allowed to reheat the storage tank.
Are you using more hot water than you think?
Is one outlet (especially the shower) using more hot water than you think?
Very often it is not realised the amount of hot water used, particularly when showering. Carefully review
the family‟s hot water usage. As you have installed an energy saving appliance, energy saving should
also be practised in the home.
Adjust your water usage pattern to take advantage of maximum energy gains. Have your plumber install
a flow control valve to each shower outlet to reduce water usage.
Heat pump fault
Has the heat pump developed a fault?
The heat pump will not operate and the water heater will switch to
either backup heating mode or booster heating mode. The boost
capacity of the heating unit in backup heating mode is 110 litres and
in booster heating mode is 220 litres.
Refer to “Heat Pump Is Not Operating” on page 14.
Temperature pressure relief valve running
Is the relief valve discharging too much water?
Refer to “Temperature Pressure Relief Valve Running” on page 16.
Water heater size
Do you have the correct size water heater for your requirements?
The sizing guide in the sales literature and on the Rheem website (www.rheem.com.au) suggests
average sizes that may be needed.
WATER NOT HOT ENOUGH
You may find that due to heavy hot water usage the water temperature may be lower than normally
expected, due to insufficient heating time being allowed. You will need to carefully plan your use of the hot
water on such occasions.
WATER TOO HOT
The water heater during heat pump operation and booster heating mode will heat the water to a temperature
of 60°C. If the heat pump tank sensors have developed a particular fault condition, the heat pump will not
operate and the water heater will switch to backup heating to ensure a supply of hot water. The red LED will
show a series of 1 x red flashes (green LED is off).
In backup heating mode, the booster heating unit and its controlling thermostat will operate if heating of the
water is required, regardless of the ambient air temperature. The water heater, during backup heating mode
will heat the water to a temperature of 70°C. The boost capacity of the heating unit in backup heating mode
is 110 litres. When heating is completed the green and red LEDs will be off. The red LED should
recommence to flash a single flash (green LED is off) when the water temperature in the top of the tank
decreases to approximately 62°C.
Phone Rheem Service or their nearest Accredited Service Agent to arrange for an inspection.
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