Rheem Error Code A081: Water Flow Control Error

Severity
Warning
Type
digital display
Where to look
front panel
Estimated repair cost: $150 — $350 (parts + labor)
Warning: Your Rheem HVAC system has detected a water flow issue, which could lead to system damage if not addressed.

How to Fix Rheem Code A081

  1. Check the water supply line for any kinks or blockages
  2. Inspect the water filter and replace it if necessary
  3. If the issue persists, contact a professional HVAC technician

How to Reset Rheem Code A081

  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 A081 mean?

The A081 error code on your Rheem HVAC system indicates a water flow control issue. This could be due to a blockage in the water flow, a faulty water flow switch, or an issue with the system's water pump. It's important to address this issue promptly to prevent further damage to your system.

Affected Models

Replacement Parts

PartOEM NumberEst. Cost
Water Flow Switch RHEEM 30-5385 —
Water Pump RHEEM 30-5386 —

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