Amana Error Code 8R: Reversed Polarity
Warning: This error indicates a dangerous electrical wiring problem. Immediately shut off the furnace at the breaker and call a qualified HVAC technician or electrician.
How to Fix Amana Code 8R
- Step 1: Immediately turn off the furnace by switching off the corresponding breaker in your electrical panel.
- Step 2: Do not attempt to troubleshoot or repair the wiring yourself. Electrical work should only be performed by qualified professionals.
- Step 3: Contact a licensed HVAC technician or a qualified electrician to inspect and correct the wiring issue.
How to Reset Amana Code 8R
- 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 8R mean?
The '8R' error code on your Amana furnace indicates reversed polarity in the electrical wiring. This means the hot and neutral wires are connected incorrectly. While it might seem like a minor issue, reversed polarity can create a significant safety hazard. Your furnace's safety mechanisms and flame sensor rely on correct polarity to function properly.
With reversed polarity, the furnace chassis can become energized, posing a shock risk. Also, the flame sensor might not detect the flame reliably, leading to erratic operation or even a dangerous buildup of unburned gas. Because this issue affects the entire electrical system of the furnace, it's critical to address it immediately to prevent potential damage or injury.
Affected Models
Replacement Parts
| Part | OEM Number | Est. Cost |
|---|---|---|
| Ignition Control Module | — | — |
| Flame Sensor | — | — |
| Wiring Harness | — | — |
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 |
| 7R | Low Flame Signal | Critical |
| 9R | Blower Motor Fault | Warning |
| 10R | Communication Error | Warning |