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Atlantic

Boiler

Data independently verified by Elite B2B Technicians

Diagnostic Complet

Error Code E03 Atlantic

Symptom / Description

Flue or fan fault

Root Cause

Blockage in the flue, faulty fan, or air pressure switch failure.

Repair Instructions

UNLOCKED

Check flue for obstructions. Verify fan is running. Check connections to the air pressure switch.

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