Dometic · FreshJet FJZ rooftop air conditioners
E8Discharge-pipe temperature sensor fault
The system detected a failure in the compressor discharge-pipe temperature sensor.
What it means
Plain-English answer
The discharge sensor protects and regulates the refrigeration system. Operating without reliable feedback can risk compressor damage.
Owner-safe checks
What to check first
- 01
Turn the air conditioner off.
- 02
Record whether the code followed heavy load or extreme outdoor heat.
- 03
Check only that exterior airflow is not visibly obstructed.
Safety boundary
Stop and call a technician when
- Do not continue repeated restart attempts.
- Refrigerant and sensor diagnosis requires authorized service.
Primary reference
Check the exact manual
Applicability: FreshJet FJZ rooftop air conditioners. The data plate and specification letter determine which procedure is correct.
Open Dometic FreshJet FJZ operating manual ↗Source reviewed August 2026