Technical data

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.

COLD WATER FROM THE HOT TAP

 Close the hot tap, wait 10 seconds and open the hot tap again.

 Is the hot tap open enough?

The gas booster burners will not light if the flow rate is less than 2.0 L / min.

 Solar control unit and gas booster not operating

 Check the power supply cord is plugged in and the power outlet switched on.

 Is power available in the house?

Try using another electrical appliance.

 Gas supply

 Is the isolation valve in the gas line open?

 Is there a gas supply to the rest of the house?

Try lighting another gas appliance.

 Has the gas line been purged of air after installation?

Refer to your plumber.

REDUCED HOT WATER FLOW WHEN HEAT EXCHANGER IS COLD

At a cold start-up, i.e. when the gas booster has not operated for some time (which is most often first thing in

the morning), the initial flow of hot water may be reduced for a period of 5-10 seconds while the heat exchanger

warms up. This is both an energy and water saving feature of this water heater. Once the heat exchanger

has warmed up the hot water flow will increase and remain at normal flow levels. This feature will only occur

at a cold start-up and not when the heat exchanger is already warm from a recent use of hot water.

NO WATER FROM THE HOT TAP

No flow of water from the hot tap may indicate a restriction in or failure of the cold water supply to the water

heater. Check for water flow at other taps and that the cold water isolation valve (refer to page 37) is fully open.

WATER FLOW FLUCTUATES

More than two or three hot taps in use at the same time may cause a decrease in the hot water flow from the

taps.

 Is there more than two or three hot taps open, or are appliances such as a dishwasher or washing

machine, in use at the same time?

Ensure only two or three hot taps (or appliance) are on at the one time.

 Check the flow of the water from one tap, e.g., the shower.

The shower should be adjusted so the hot tap is fully open.