Amana Error Code 7R: Low Flame Signal
Warning: This error indicates a problem with the furnace's flame detection. There is a risk of gas buildup, so shut the furnace down immediately and call for professional service.
How to Fix Amana Code 7R
- Step 1: Turn off the furnace. Locate the furnace's power switch (usually on the side of the unit) and switch it to the 'off' position.
- Step 2: Check your gas supply. Ensure that the gas supply to your house is turned on and that other gas appliances are working correctly.
- Step 3: Call a qualified HVAC technician. Do not attempt to troubleshoot the furnace yourself, as this involves working with gas and high voltage electricity.
How to Reset Amana Code 7R
- Turn off the furnace power switch, usually located on or near the unit.
- Turn off the circuit breaker for the furnace. Wait 30 seconds.
- Restore power at the breaker and flip the furnace switch back on.
- Set the thermostat to call for heat. If the error code returns after 2-3 ignition attempts, the fault requires repair.
What does 7R mean?
The '7R' error code on your Amana furnace indicates a low or unstable flame signal. This means the furnace control board isn't consistently 'seeing' the flame after ignition. The furnace goes through its normal start-up sequence: the inducer motor starts, the igniter heats up, and the gas valve opens. However, if the flame sensor doesn't detect a strong enough flame within a few seconds, the control board shuts off the gas to prevent a dangerous gas buildup. This is a critical safety feature. A weak flame signal can be caused by several factors, from a dirty flame sensor to problems with the gas supply itself. Because this involves gas and combustion, it's important to address it quickly and safely.
Affected Models
Replacement Parts
| Part | OEM Number | Est. Cost |
|---|---|---|
| Flame Sensor | B11726-13 | — |
| Gas Valve | — | — |
| Integrated Furnace Control (IFC) Board | — | — |
Related Codes on Same Models
| Code | Description | Severity |
|---|---|---|
| 1R | Flame Without Call | Critical |
| 2R | Pressure Switch Stuck Closed | Warning |
| 3R | Pressure Switch Open | Warning |
| 4R | High Limit / Rollout | Critical |
| 5R | Ignition Lockout | Critical |
| 6R | Gas Valve Relay Fault | Critical |
| 8R | Reversed Polarity | Critical |
| 9R | Blower Motor Fault | Warning |
| 10R | Communication Error | Warning |