Rheem Error Code A051: Fan Motor Abnormality

Severity
Warning
Type
digital display
Where to look
front panel
Estimated repair cost: $250 — $600 (parts + labor)
Warning: Your Rheem HVAC system has detected an abnormal fan motor condition. It's safe to use, but needs professional attention.

How to Fix Rheem Code A051

  1. Turn off your HVAC system at the thermostat and the circuit breaker to prevent further operation until a professional arrives.
  2. Listen for any unusual noises coming from your HVAC unit when it's turned on. This could help your technician diagnose the issue more quickly.
  3. Contact a licensed HVAC technician to inspect and repair your system.

How to Reset Rheem Code A051

  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 A051 mean?

The Rheem A051 error code indicates that your HVAC system has identified an unusual operation in the fan motor. This could be due to a variety of reasons, but it's important to have it checked by a professional to prevent potential damage to your system. The fan motor is a crucial component that ensures proper airflow and heat exchange in your HVAC system.

Affected Models

Replacement Parts

PartOEM NumberEst. Cost
Fan Motor Assembly RHEEM 370050 —
Fan Motor Control Board RHEEM 370051 —

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
A052 Fan Motor Speed Error Warning