Rheem Error Code A011: No Flame Detected

Severity
Warning
Type
digital display
Where to look
front panel
Estimated repair cost: $100 — $250 (parts + labor)
Warning: Your Rheem furnace has detected a problem that requires professional attention.

How to Fix Rheem Code A011

  1. Step 1: Turn off your furnace at the thermostat and at the main gas valve.
  2. Step 2: Wait at least 30 minutes before turning the gas valve back on to reset the system.
  3. Step 3: If the error persists, do not attempt to fix it yourself. Call a professional HVAC technician.

How to Reset Rheem Code A011

  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 A011 mean?

The 'No Flame Detected' (A011) error on your Rheem furnace indicates that the system has failed to ignite or maintain a flame. This could be due to a variety of reasons, but it's crucial to address this issue promptly to prevent further damage and ensure your furnace is operating safely.

Affected Models

Replacement Parts

PartOEM NumberEst. Cost
Igniter RHE-340170 —
Flame Sensor RHE-340171 —

Related Codes on Same Models

CodeDescriptionSeverity
A001 Ignition Failure Warning
A003 Abnormal Ignition Warning
A004 False Flame Detection Warning
A008 Exhaust Temperature High 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
A052 Fan Motor Speed Error Warning