A001 🟡 Repair Required

Rheem Error Code A001: Ignition Failure

⚠️ Your Rheem HVAC system has encountered an ignition failure. It's safe to operate, but it needs professional attention.

How to Fix Rheem Code A001

  1. Step 1: Turn off your HVAC system at the thermostat.
  2. Step 2: Check if the error persists after turning the system back on. If it does, it's time to call a professional.
  3. Step 3: In the meantime, ensure the area around your HVAC unit is clear and well-ventilated.
Type: digital display Display: front panel

What Does Rheem Error Code A001 Mean?

The A001 error code on your Rheem HVAC system indicates that the ignition system isn't functioning correctly. This could be due to a faulty ignition control module, a problem with the igniter, or an issue with the gas valve. The system is designed to protect itself from potential hazards, so it's displaying this error and may not be operating at full capacity.

Common Causes of Rheem Code A001

  • Faulty ignition control module
  • Defective igniter
  • Problem with the gas valve

Applicable Rheem Models

NCB🔥NPE⚡R801T🔥R92E⚡R92V🔥RGE🔥RH2T⚡RNC⚡RNE⚡RNG🔥RP16⚡RPB🔥RTGH🔥Rheem Classic🔥Rheem Classic 80 Plus🔥Rheem Classic 80% Gas Furnace🔥Rheem Classic 90 Plus🔥Rheem Classic Plus Series🔥Rheem Classic Series⚡Rheem Prestige🔥Rheem Prestige 95% Gas Furnace🔥Rheem Prestige Series🔥
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Replacement Parts for Rheem Tankless Water Heater Code A001

Ignition Control Module OEM: RHEEM 357090
Igniter OEM: RHEEM 357080