F31 — Low L2 Voltage
The control detects that the L2 leg of the dryer's 240V power supply measures below approximately 30 volts. This is a power-supply problem, not a motor/tachometer fault — the dryer may run but without heat.
- Keep using it?
- Yes, with caution
- DIY difficulty
- Moderate
How to fix it
- Check the breaker panel and confirm both breakers feeding the dryer's 240V circuit are on.
- If the breaker is fine, do not open the dryer's power terminal block yourself — that connection carries line voltage. Schedule a qualified electrician or appliance technician to check voltage at the outlet and at the terminal block.
Why it happens
Typical signs: F31 displayed · Dryer runs but produces no heat · Drum turns normally
- Tripped breaker or blown fuse on one leg The dryer's 240V circuit uses two hot legs (L1/L2); if the L2 breaker or fuse has tripped, that leg reads low or zero.
- Loose power-cord terminal A loose connection at the dryer's power cord terminal block can drop the L2 voltage.
- House wiring/supply problem An issue upstream of the dryer, such as at the outlet or panel, is not delivering full voltage on L2.
More Amana dryer codes
Frequently asked questions
What does the F31 code mean on a Amana dryer?
The control detects that the L2 leg of the dryer's 240V power supply measures below approximately 30 volts. This is a power-supply problem, not a motor/tachometer fault — the dryer may run but without heat.
What causes the F31 code on a Amana dryer?
Tripped breaker or blown fuse on one leg: The dryer's 240V circuit uses two hot legs (L1/L2); if the L2 breaker or fuse has tripped, that leg reads low or zero. Loose power-cord terminal: A loose connection at the dryer's power cord terminal block can drop the L2 voltage. House wiring/supply problem: An issue upstream of the dryer, such as at the outlet or panel, is not delivering full voltage on L2.
Is it safe to keep using a Amana dryer with a F31 error?
Yes, with caution. This is rated a moderate-severity fault.
How do I fix F31 on a Amana dryer?
Check the breaker panel and confirm both breakers feeding the dryer's 240V circuit are on. If the breaker is fine, do not open the dryer's power terminal block yourself — that connection carries line voltage. Schedule a qualified electrician or appliance technician to check voltage at the outlet and at the terminal block.
Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.