Fault codes / 12V compressor fridge / 4 blinks

12V compressor fridge: 4 blinks

What it means: Minimum motor speed fault.

What to check

Often a restricted or failing compressor, or low voltage.

Learn the system

• Absorption fridges (gas/electric)
• 12V compressor and residential fridges
• Absorption fridge won't run on gas
• Absorption fridge won't run on electric

Practice it on a service call

• Fridge won't run on gas
• Fridge is warm after unplugging
• Fridge works on gas, not electric

Guided diagnosis

• Refrigerator
• Refrigerator: Compressor / Residential

Other 12V compressor fridge codes

• 12V compressor fridge: 1 blink Battery protection cutout
• 12V compressor fridge: 2 blinks Fan overload
• 12V compressor fridge: 3 blinks Compressor failed to start
• 12V compressor fridge: 5 blinks Controller overtemperature

Full field guide: 12V compressor fridge controller

Codes come from the maker manuals and public service sheets. Your model's own chart always wins, and LP and 120 volt work belongs to a qualified technician.