Rheem Error Code A071: Gas Valve Circuit Error
Warning: Your Rheem HVAC system has detected a gas valve circuit error. It's safe to operate, but you should schedule a professional repair soon.
How to Fix Rheem Code A071
- Check if your Rheem system is in fan-only mode. If not, switch it to fan-only using your thermostat.
- Inspect your air filter. If it's dirty, replace it with a new one.
- Contact a professional Rheem HVAC technician to diagnose and repair the issue
How to Reset Rheem Code A071
- Turn off the unit using the power button on the front panel.
- Turn off the gas supply valve.
- Turn off the circuit breaker supplying power to the unit. Wait 30 seconds.
- Restore power at the breaker, then open the gas valve.
- Turn the unit back on. If the error returns, the underlying issue needs repair.
Resetting clears the code from the display but does not fix the underlying fault. If the code returns after reset, proceed to the diagnostic steps above.
What Does Rheem Error Code A071 Mean?
The A071 error on your Rheem HVAC system indicates a problem with the gas valve circuit. This circuit controls the gas flow to your furnace's burner. The system has temporarily shut down the gas supply to ensure safety. You can continue using your system in fan-only mode, but it won't provide heat until the issue is resolved.
Common Causes
- Wiring issues in the gas valve circuit
- Faulty gas valve or igniter
- Clogged or dirty gas valve
- Incorrect gas valve settings or calibration
Diagnostic Steps
| If... | Check | Expected |
|---|---|---|
| System is in heat mode | Check if the gas valve is opening and closing. Use a multimeter to measure the voltage across the gas valve terminals. | Should see 24V AC when the valve is supposed to open and 0V AC when it's closed |
| Gas valve is not opening or closing | Inspect the wiring and connections to the gas valve. Check for any breaks, corrosion, or loose connections. | Wiring should be intact and connections should be secure |
Applicable Rheem Models
- NCB(gas)
- NPE(electric)
- R801T(gas)
- R92E(electric)
- R92V(gas)
- RGE(gas)
- RH2T(electric)
- RNC(dual_fuel)
- RNE(electric)
- RNG(gas)
- RP16(electric)
- RPB(gas)
- RTGH(gas)
- Rheem Classic(gas)
- Rheem Classic 80 Plus(gas)
- Rheem Classic 80% Gas Furnace(gas)
- Rheem Classic 90 Plus(gas)
- Rheem Classic Plus Series(gas)
- Rheem Classic Series(dual_fuel)
- Rheem Prestige(gas)
- Rheem Prestige 95% Gas Furnace(gas)
- Rheem Prestige Series(gas)
Replacement Parts
| Part | OEM Number | Est. Cost | Where to Buy |
|---|---|---|---|
| Gas Valve | R0171244 | — | Find Part |
| Igniter | R0171245 | — | Find Part |
Related Codes on Same Models
Other codes that affect the same Rheem model families as A071.
| Code | Description | Severity |
|---|---|---|
| A001 | Ignition Failure | 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 |
| A053 | Fan Motor Open Circuit | Warning |
| A054 | Fan Motor Overcurrent | Warning |
| A055 | Fan Motor Locked | Warning |