Air conditioner does not start or shuts down unexpectedly

Possible cause: Fault on the D+ control line or alternator voltage. Check the D+ control line and alternator voltage; have repairs carried out by a specialist if the fault persists.

Appliance has visible damage or system failure

Possible cause: Physical damage to components. Must be repaired or replaced by an authorised service agent or specialist.

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Dometic • General Equipment

Dometic ECL-76, ECL-102, ECL-103

Official technical documentation and workshop diagnostics for ECL.

View official manual on manufacturer's site ↗

Technical Specifications

Operating Voltage12V DC / 24V DC

Power ConsumptionUp to 120 A from 12 V-voltage supply

Fuse Ratings120A / 150A / 200A / 250A

Master Troubleshooting & Diagnostics Matrix

Error Code / Indicator	Symptom / Meaning	Possible Cause	Step-by-Step DIY Fix	Suggested Actions
`N/A`	Air conditioner does not start or shuts down unexpectedly	Fault on the D+ control line or alternator voltage	Check the D+ control line and alternator voltage; have repairs carried out by a specialist if the fault persists.	DIY Check / Tech Fallback
`N/A`	Appliance has visible damage or system failure	Physical damage to components	Must be repaired or replaced by an authorised service agent or specialist.	Professional Intervention Required