Rheem Error Code 29: Rheem Code 29 - Fan Motor Abnormality

Severity
Warning
Type
digital display
Estimated repair cost: $250 — $600 (parts + labor)
Warning: Your Rheem unit has detected a problem with the fan motor and has shut down to prevent further damage. You will likely have no heat or hot water.

How to Fix Rheem Code 29

  1. Step 1: Check the vent for any visible obstructions like leaves, snow, or debris. Clear any blockages you can safely reach from the outside.
  2. Step 2: Reset the unit by turning off the power at the breaker for a few minutes, then turning it back on. This might clear a temporary error.
  3. Step 3: If the error persists after these steps, contact a qualified HVAC technician for diagnosis and repair.

How to Reset Rheem Code 29

  1. Turn off the unit using the power button on the front panel.
  2. Turn off the gas supply valve.
  3. Turn off the circuit breaker supplying power to the unit. Wait 30 seconds.
  4. Restore power at the breaker, then open the gas valve.
  5. Turn the unit back on. If the error returns, the underlying issue needs repair.

What does 29 mean?

Rheem error code 29 indicates an abnormality with the fan motor. This usually means the system's control board isn't receiving the expected feedback from the fan, or that the fan isn't operating within the expected speed range. The fan motor is responsible for exhausting combustion gases safely out of your home. When it malfunctions, the system shuts down as a safety precaution to prevent dangerous gases from building up inside your home. This code can appear on tankless water heaters or furnaces.

Affected Models

Replacement Parts

PartOEM NumberEst. Cost
Draft Inducer Motor
Control Board
Pressure Switch

Related Codes on Same Models

CodeDescriptionSeverity
A001 Ignition Failure Warning
A003 Abnormal Ignition Warning
A004 False Flame Detection Warning
A008 Exhaust Temperature High Warning
A011 No Flame Detected Warning
A021 Over-Temperature Warning
A031 Inlet Thermistor Open/Short Warning
A041 Outlet Thermistor Open/Short Warning
A043 Water Level Error Warning
A051 Fan Motor Abnormality Warning