Laars Error 133: Flame Establishment Safety Time Expired
The safety time allotted for flame establishment during ignition expired without proving flame, so the Mascot HT locks out. No heat until reset. We diagnose and repair it across Greater Vancouver — same-day and after-hours.
The safety time allotted for flame establishment during ignition expired without proving flame, so the Mascot HT locks out. No heat until reset.
Laars 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 Laars error 133
- No gas / low gas supply pressure
- Fouled or worn ignition electrode or flame rod
- Faulty gas valve
- Restricted air intake or vent
- Failed control
What you can safely check
- Confirm the gas supply is on and other gas appliances work
- Check the outside intake/vent terminal is clear, then reset once
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 133 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 Laars repair.
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For your safety and to keep your manufacturer warranty valid, BoilerPart.ca does not sell loose boiler parts over the counter or for self-installation. Under BC regulations, gas appliance components must be installed by a licensed gas fitter. Every part we source is genuine OEM and is professionally fitted, tested, and certified by our Technical Safety BC–licensed technicians as part of a complete repair or installation.
Parts often behind Laars error 133
Genuine Laars parts we supply and professionally install — never for DIY.
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Laars Error 133 Repair Across Metro Vancouver
Frequently Asked Questions
Fix Laars Error 133 Today
Licensed Laars diagnosis and repair with genuine parts — same-day and after-hours across Greater Vancouver.
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