Peerless Error A19: False Flame Detected After Shutdown
Locking (manual-reset) safety lockout — a flame signal was still detected 10 seconds after the gas valve was commanded closed. Treated as a serious safety condition (possible gas valve not closing). We diagnose and repair it across Greater Vancouver — same-day and after-hours.
Locking (manual-reset) safety lockout — a flame signal was still detected 10 seconds after the gas valve was commanded closed. Treated as a serious safety condition (possible gas valve not closing).
Peerless 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 Peerless error A19
- Gas valve not closing completely / leaking by
- Flame sensor shorted to ground giving a false signal
- Ignition electrode shorted to ground
- Damaged sensor or igniter wiring
- Control board misreading the flame circuit
What you can safely check
- Treat as a safety fault — do not keep resetting
- If you smell gas, leave the building and call the gas utility from outside
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 A19 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 Peerless repair.
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Parts often behind Peerless error A19
Genuine Peerless parts we supply and professionally install — never for DIY.
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Peerless Error A19 Repair Across Metro Vancouver
Related Peerless Ignition & Flame Codes
Frequently Asked Questions
Fix Peerless Error A19 Today
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