Dometic · FreshJet FJZ rooftop air conditioners
EACurrent sensor fault
The air-conditioner controls cannot measure electrical current reliably.
What it means
Plain-English answer
EA identifies a fault in the current-sensing circuit. Reliable current measurement is required for load and compressor protection.
Owner-safe checks
What to check first
- 01
Turn the HVAC system off.
- 02
Record whether the fault appeared at startup or during compressor operation.
- 03
Confirm the RV supply connection is secure and undamaged without opening electrical panels.
Safety boundary
Stop and call a technician when
- Do not test live current-sensor wiring.
- Arrange authorized Dometic 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