Friedrich 38 error code

What it means

The indoor EEPROM memory chip or indoor control board is not operating normally.

Urgency

Likely causes

1. EEPROM chip loose
2. Indoor control board failed

Homeowner fix

Turn the system off and power cycle once if safe. Do not open the indoor unit or touch control boards.

When to call a pro

Call a Friedrich-qualified technician if code 38 returns. Tell them the service manual lists indoor EEPROM failure.

Repair vs replace

EEPROM or board faults are usually repairable; compare major board repair with replacement on older systems.

• 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.75: code 38 - indoor EEPROM failure; causes are loose EEPROM chip or failed indoor control 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 thirty eight 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