These Rheem hot water heaters are fitted with self diagnostics electronics. When a fault occurs, the heater will shut down and the fault with a pair of digits will be displayed on the display screen. Refer to the following table for probable cause and suggested remedy.
Fault Condition : EZ Link
Item to check : Book service call
Fault Condition : Imperfect Combustion Alarm
Book service call
Fault Condition : Abnormal low rate combustion
Book service call
Fault Condition : Ignition failure at start up
LPG users check Propane bottle level. Close hot tap, cycle power on and off at GPO and open hot tap again. If fault re-occurs book service call.
Fault Condition : Flame failure during operation
LPG users check Propane bottle level. Close hot tap, cycle power on and off at GPO and open hot tap again. If fault re-occurs book service call.
Fault Condition : Over heating
Item to check : Book service call
Fault Condition :Very high temperature
Item to check : Book service call
Fault Condition : Outlet water temp too high
Item to check : Book service call
Fault Condition : Operational switch faulty
Item to check : Book service call
Fault Condition : Heat Exchanger Outlet Temp. Too Low
Item to check : Book service call
Fault Condition : Inlet thermistor open circuit
Item to check : Book service call
Fault Condition : Heat exchanger thermistor open circuit
Item to check : Book service call
Fault Condition : Outlet thermistor open circuit
Item to check : Book service call
Fault Condition : Ambient air thermistor open circuit
Item to check : Book service call
Fault Condition : Thermistor connections crossed
Item to check : Book service call
Fault Condition : Gas cut off malfunction (SV0 failure)
Item to check : Book service call
Fault Condition : P.G.F.R control failure
Item to check : Book service call
Fault Condition : Bypass solenoid failure
Item to check : Book service call
Fault Condition : Abnormal fan speed or fan failure
Item to check : Book service call
Fault Condition : Malfunction of water volume control motor
Item to check : Book service call
Fault Condition : Water By-Pass Control Fault
Item to check : Book service call
Fault Condition : G.I.S valve control failure
Item to check : Book service call
Fault Condition : Detected false flame
Item to check : Book service call
Fault Condition : Vent type control data failure
Item to check : Book service call
Fault Condition : Communication problem between remote controller and water heater
Item to check : Book service call
Fault Condition : Fan motor current detection failure
Item to check : Book service call
Fault Condition : Fan motor current detection failure
Item to check : Book service call
Fault Condition : Gas cut off defective
Item to check : Book service call
Fault Condition : No false flame detected
Item to check : Book service call
Fault Condition : Functional problem on gas type circuit board
Item to check : Book service call
Fault Condition : Decrease in fan motor ventilation.
Item to check : Book service call
Fault Condition : Decrease in fan motor ventilation. (Operation stop)
Item to check : Book service call
