Save A Service Call - Rheem 874 Owner's Manual And Installation Instructions

Check the items below before making a service call. You will be charged for attending to any condition or
fault, which is not related to manufacture or failure of a part (refer to
NO DISPLAY ON THE CONTROLLER
Is the controller turned on?
Press the on / off button (refer to
Is the water heater plugged in and the power outlet switched on?
Is power available in the house?
Try using another electrical appliance.
COLD WATER FROM THE HOT OUTLET
Is the controller turned on?
Press the on / off button (refer to
pages 9 to 38).
Close the hot outlets, wait 10 seconds and open the hot tap again.
Is the hot outlets open enough?
The burners will not light if the flow rate is less than 3.0 L / min.
Is the water heater plugged in and the power outlet switched on?
Is power available in the house?
Try using another electrical appliance.
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.
WATER IS TOO HOT OR NOT HOT ENOUGH
Does the controller you are using have priority? (refer to
NO WATER FROM THE HOT OUTLETS
No flow of water from the hot outlets 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
fully open.
WATER FLOW FLUCTUATES
More than two or three outlets in use at the same time may cause a decrease in the hot water flow from the
taps. This can also be evident if the water heater has been installed as a gas booster water heater to a solar
preheat water heater and the solar preheat water is at a low temperature.
Are there more than two or three taps open, or are appliances such as a dishwasher or washing
machine, in use at the same time?
Ensure only two or three taps or appliances are on at the one time.
Check the flow of the water from one tap, eg, the shower.
The shower should be adjusted so the hot tap is fully open.

SAVE A SERVICE CALL

"Temperature Control"
"Temperature Control"
39
"Warranty"
on page 75).
on pages 9 to 38).
on
"Temperature Control"
on pages 9 to 38)
(refer to page 54) is