Rheem Guardian PowerVent - Error Codes 11-13 Troubleshooting

Guardian PowerVent Training Manual SVC900; Rev 1
Page 47
and looking thru sight glass window. If you have a glowing ignitor, then your problem is
probably fuel related.)
5. Thermal Release Device is damage or missing. No oxygen in combustion chamber.
6. Inadequate fresh air to support combustion inside combustion chamber.
7. Main burner supply tube is blocked, bent or restricted; burner orifice is blocked or
restricted.
Error 7
Indications Display
The self-diagnostic test found a problem
with the gas valve driver circuit.
Troubleshooting
1. Cycle power to the water heater off for 10 seconds and then back on.
2. If the above step did not clear the error, the INTELLI-VENT control must be replaced.
Note: There are no further tests to conduct when the control fails one of its “self-diagnostic”
tests. If the valve thinks there is something wrong; then the recourse is to replace the control.
Error 8
Indications Display
The self-diagnostic test found a problem
with the internal micro computer
Troubleshooting
1. Cycle power to the water heater off for 10 seconds and then back on.
2. If the above step did not clear the error, the INTELLI-VENT control must be replaced.
Note: There are no further tests to conduct when the control fails one of its “self-diagnostic”
tests. If the valve thinks there is something wrong; then the recourse is to replace the control.
Error 9
Indications Display
The self-diagnostic test found a problem
with the internal circuit
Troubleshooting
1. Cycle power to the water heater off for 10 seconds and then back on.
2. If the above step did not clear the error, the INTELLI-VENT control must be replaced.
Note: There are no further tests to conduct when the control fails one of its “self-diagnostic”
tests. If the valve thinks there is something wrong; then the recourse is to replace the control.