Rheem RTGH-RH11DV Use And Care Manual page 69

Error Code Error Code Description
Fan Speed too High with
Er:41
Burner Overheat Switch
Er:43
Er:44 Recirculation Abnormality
Er:45 Water Leak
Hot Water Temperature
Er:60
Abnormality
Fan Speed Feedback Signal
Er:61
Er:65 Supply Water Valve Error
Er:66 Mixing Valve Error
Press the Power button to clear the Error Code.
If Error happens again:
1. Check the vent connections for blockages.
2. Check the burner assembly.
Flame On
3. Check fan operation. If fan appears to be operating normally but RPMs are too low or too
high, replace the fan.
4. If the problem persists, replace the main control.
Press the Power button to clear the Error Code.
If Error happens again:
1. Check burner overheat switch connections. Ensure connections are secure.
Open
2. Check switch resistance. If resistance is zero, replace the switch.
3. If the problem persists, replace the main control.
Press the Power button to clear the Error Code.
If Error happens again:
1. Ensure water heater inlet and outlets are open and water is supplied to the water heater.
2. Check the pump operation.
3. If it doesn't work, ensure wiring connections to pump.
4. If even supply power to pump and doesn't run it replace the pump.
If Error happens again:
1. Verify recirculation loop length is within specification. Air purge is not enough.
2. Too much restriction on recirculation loop.
3. Return loops are clogged.
4. Check the recirculation loop condition
1. Turn power off to the water heater.
2. Valve off the water heater to isolate it from the system.
3. Call a qualified service technician to diagnose and repair the source of the leak.
Press the Power button to clear the Error Code.
If Error happens again:
1. Ensure water heater inlet and outlets are open and water is supplied to the water heater.
If Error happens again:
1. Ensure water heater inlet and outlets are open and water is supplied to the water heater.
2. Check the pump operation.
3. If it doesn't work, ensure wiring connections to pump.
4. If even supply power to pump and doesn't run it, replace the pump.
If Error happens again:
1. Verify recirculation loop length is within specification. Air purge is not enough.
2. Too much restriction on recirculation loop.
3. Return loops are clogged.
4. Check the recirculation loop condition.
This Error Code will go away when the condition is remedied.
If Error happens again:
1. Check the connections to the fan. Ensure all are secure.
2. If the fan does not rotate during the ignition sequence, check for DC15~30V power at the fan
Abnormal connection. If DC15~30V power is present at the control, replace the fan. If the blower does not
have DC15~30V power, check power at the control. If DC15~30V power is not present at the control,
replace the control.
3. If the problem persists, replace the main control.
Press the Power button to clear the Error Code.
If Error happens again:
1. Turn power OFF and ON at the main power switch internal to the water heater.
2. Check wiring connections to supply water valve. Ensure all are secure.
3. Replace supply water valve.
4. If the problem persists, replace the main control.
Press the Power button to clear the Error Code.
If Error happens again:
1. Turn power OFF and ON at the main power switch internal to the water heater.
2. Check wiring connections to mixing valve. Ensure all are secure.
3. Replace mixing valve.
4. If the problem persists, replace the main control.
Possible Remedies
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AP18733 REV. 3.2.17