Dunkirk Error E02: Ignition failed
Per the Q90/95M-200 manual, hard-lockout Code 02 means ignition failed after the maximum ignition trials (the control retries; flame must prove within 6 attempts or it locks out). Display flashes first digit 'E' then '02'. Manual RESET required. We diagnose and repair it across Greater Vancouver — same-day and after-hours.
Per the Q90/95M-200 manual, hard-lockout Code 02 means ignition failed after the maximum ignition trials (the control retries; flame must prove within 6 attempts or it locks out). Display flashes first digit 'E' then '02'. Manual RESET required.
Dunkirk fault codes can vary by model and series. Use this as a guide — the same code can have more than one cause. Our Technical Safety BC–licensed technicians read the code, confirm it against your unit's manual, and diagnose the true cause before any repair.
Likely causes of Dunkirk error E02
- No or weak ignition spark / failed igniter or electrode
- Gas supply problem - shutoff closed, low gas pressure, or air in gas line
- Faulty or stuck gas valve
- Dirty, corroded or misaligned flame sensor (flame not proven)
- Condensate-blocked or obstructed flue causing poor combustion
What you can safely check
- Confirm the gas shutoff valve to the boiler is fully open
- Check that other gas appliances in the home work (rules out a gas-supply outage)
Beyond these checks, do not open the unit or touch gas/electrical parts — BC law requires a licensed gas fitter. Call us for a proper diagnosis.
Error E02 usually leaves you without heat or hot water and can indicate a safety-related fault. Don't keep resetting it — call for priority after-hours Dunkirk repair.
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Parts often behind Dunkirk error E02
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Dunkirk Error E02 Repair Across Metro Vancouver
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