Why is the hot water recovery so slow on my Rheem Guardian PowerVent?
If your Rheem Water Heater has a slow hot water recovery, it might be due to a clogged burner orifice or improper gas pressure. Check and clean the burner orifice. Also, check and adjust the gas pressure.
Why is my Rheem Guardian PowerVent so noisy (rumbling and sizzling)?
If your Rheem Water Heater is excessively noisy, producing rumbling and sizzling sounds, it could be due to scale or sediment build-up in the bottom of the tank. Alternatively, the flue baffle might be loose, or there could be condensation on the main burner. To address this, clean the tank. Reset and tighten the flue baffle. Inspect for condensation (which is normal) and check for tank leaks.
Why is the water from my Rheem Guardian PowerVent Water Heater too hot?
If your Rheem Water Heater is producing water that's too hot, the thermostat setting may be too high, or the thermostat might be out of calibration. Try adjusting the thermostat to a lower setting. If that doesn't resolve the issue, you may need to check and replace the control valve.
What causes the main burner to not stay lit on a Rheem Guardian PowerVent?
If the main burner on your Rheem Water Heater won't stay lit, check the gas supply pressure and verify the manifold pressure. Ensure the white Molex connector is tight and verify 120V at pin #6. If 120V is present, the control board is working, but the gas valve is not, so it needs replacement. If there is no 120V, the electronic control board is damaged and needs replacement. Clean or replace the main burner orifice or plate if clogged. Clean, straighten, or replace the main burner supply tube if it's clogged or pinched. Also, ensure that the pilot flame covers the pilot hood and is steady and blue.
How to fix Rheem Guardian PowerVent when pilot won't light and I don't hear the spark ignitor?
If the pilot won't light on your Rheem Water Heater and you don't hear the spark ignitor, first, check that the unit is plugged in and the rocker switch is set to ON. The control module will flash with 3/3. Check the venting for any restrictions. Retry or replace the blower assembly. If exhaust gases exceeded 180°F, check the combustion chamber, blower motor area, and venting for obstructions and excessive temperature. Allow it to cool, then retry. Check and replace the spark ignitor or ignitor wire. Verify 120V at the blue wire (pin #7); if present, you should also have a spark. Replace the gas valve if necessary. Verify continuity at the ECO and replace the gas control.
Why does the pilot light keep going out on my Rheem Guardian PowerVent?
If your Rheem Water Heater pilot light won't stay lit, check for venting downdrafts or other drafts that might be blowing it out. Inspect and clean the flue way. Also, inspect and clean the supply tube, pilot orifice, and pilot burner. Ensure proper grounding of the pilot burner and main burner. Check, clean, repair, or replace the spark ignitor. Make sure the pilot flame covers the pilot hood and is steady and blue.
What to do if Rheem Guardian PowerVent Water Heater pilot won't light but I can hear the spark ignitor?
If you can hear the spark ignitor but your Rheem Water Heater pilot won't light, first, ensure the gas supply and valve are on and the white Molex connector is tight. Verify 120V at the blue wire. If there is 120V, the control board is working, but the gas valve is not, so replace it. If there is no 120V, the electronic control board is damaged and needs replacement. Inspect and clean the pilot orifice and burner, and clean, straighten, or replace the pilot tube if it's pinched or clogged. Purge any air from the gas line, cycle the unit after lockout, and try again. Reset the spark gap to 7/64”, and check the spark ignitor and wire, replacing them if damaged.
How to troubleshoot no hot water in Rheem Guardian PowerVent Water Heater?
If your Rheem Water Heater isn't producing any hot water, start by checking the fuse panel and the on/off switch at the blower motor, ensuring proper continuity on the wall plug. Also, make sure the gas supply and gas valve are turned on. If the pilot doesn't light, refer to the sections on 'Unable to light pilot' and 'Pilot does not stay lit'. If the main burner won't stay lit, consult the relevant section. Verify the ECO with a continuity test and replace the electronic control module and sensor if needed. Also, check if the Flammable Vapor Sensor has tripped.
General| Brand | Rheem |
|---|---|
| Model | Guardian PowerVent |
| Category | Water Heater |
| Language | English |
Guidance on setting water temperature for safety and energy conservation.
Precautions and warnings regarding electrical shock risks during service.
Sensor monitoring for flammable vapors.
Integrated module regulating gas and controlling operations.
Safety device tripping at excessive temperature.
Safety device sensing vacuum to verify venting.
Lockout triggered by flammable vapor sensor fault.
Control verifies vacuum switch is open before blower operation.
Blower motor starts, creating vacuum for safety switch.
Spark ignitor activates to ignite pilot gas.
Pilot flame is established and rectified.
Main gas valve opens after pilot flame is recognized.
Main burner ignites and flame rectification occurs.
Blower activates if flame is sensed when it should not be.
Introduction to the LED diagnostics system.
Explanation of flash code patterns and meanings.
Troubleshooting codes related to ignition and sensor failures.
Troubleshooting codes for switch and vacuum system faults.
Troubleshooting codes for power, ECO, and safety issues.
Procedure to test blower motor functionality.
Steps to diagnose vacuum switch issues.
Procedure to measure thermistor resistance for testing.
Procedure to test the ECO safety device for continuity.
Procedure to test the vent over-temperature switch.
Procedure to verify spark generation from the ignitor.
Normal and failure resistance values for the sensor.
Troubleshooting steps when the pilot fails to light.
Troubleshooting steps when the pilot extinguishes.
Troubleshooting steps for main burner flame issues.
Step-by-step instructions for reinstalling the gas control valve.
Connecting the new vent over temp switch wiring.
Step-by-step instructions for replacing the vacuum switch.
Step-by-step instructions for removing the FV sensor.
Step-by-step instructions for installing the FV sensor.
Procedure to reset the control for specific error codes.
Troubleshooting for White Rodgers gas valve errors 14 and 15.
Procedure to reset the White Rodgers control after FV sensor check.
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