Friedrich 2 error code

What it means

The compressor exhaust temperature sensor is not reading normally.

Urgency

Likely causes

1. Compressor exhaust temperature sensor connector loose
2. Compressor exhaust temperature sensor failed
3. Outdoor control board failed

Homeowner fix

Turn the system off and power cycle once if safe. Do not open the outdoor unit or handle compressor sensors.

When to call a pro

Call a Friedrich-qualified technician if code 2 returns. Tell them the service manual lists compressor exhaust temperature sensor trouble.

Repair vs replace

Sensor faults are usually repairable; compare replacement only if an older system needs major board or sealed-system work.

• Friedrich Floating Air Pro 9,000 BTU R-454B 115V (FAHSW09A1C / FPHSR09A1C)

  Floating Air Pro

• Friedrich Floating Air Pro 9,000 BTU R-454B 208/230V (FAHFW09A3D / FPHSR09A3D)

  Floating Air Pro

• Friedrich Floating Air Pro 12,000 BTU R-454B 115V (FAHSW12A1C / FPHSR12A1C)

  Floating Air Pro

• Friedrich Floating Air Pro 12,000 BTU R-454B 208/230V (FAHFW12A3D / FPHSR12A3D)

  Floating Air Pro

For your technician

Official Friedrich indoor diagnostic table, PDF p.73: code 2 - compressor exhaust temperature sensor trouble; causes are loose connector, failed sensor, or failed outdoor board. Page context: Friedrich maps this display to the Floating Air Pro line; source: Friedrich Ductless Floating Air Pro Single Zone Service Manual, R-454B Refrigerant, 96112000_00; display convention: match the two marker exactly before comparing neighboring codes.

Which systems show it

Floating Air Pro

Related troubleshooting

Use the symptom guide alongside the exact display code if the unit is flashing, cycling, or showing comfort symptoms.

Related codes

Source

Next step