Slant/Fin Error Hold 62 / Lockout 122: Fan speed not proved / light-off rate proving failed
Hold 62 means the combustion blower did not reach the proven speed; it appears briefly before ignition normally, but if it persists 15+ seconds it indicates a problem. Lockout 122 (light-off rate proving failed) results when the blower won't reach light-off speed. Documented causes: blown Fuse A, blower wiring defect, faulty blower (LOW/HIGH/0/erratic RPM), or a faulty SOLA controller. We diagnose and repair it across Greater Vancouver — same-day and after-hours.
Hold 62 means the combustion blower did not reach the proven speed; it appears briefly before ignition normally, but if it persists 15+ seconds it indicates a problem. Lockout 122 (light-off rate proving failed) results when the blower won't reach light-off speed. Documented causes: blown Fuse A, blower wiring defect, faulty blower (LOW/HIGH/0/erratic RPM), or a faulty SOLA controller.
Slant/Fin 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 Slant/Fin error Hold 62 / Lockout 122
- Blown Fuse 'A' preventing the blower from running
- Loose or defective blower wiring/connectors at the blower or SOLA control
- Faulty combustion blower (reads LOW RPM, HIGH RPM, 0, or erratic)
- Faulty SOLA controller
- Blower not turning on at all
What you can safely check
- Listen for the blower spinning up at the start of a heat call
- Note whether the display shows an RPM value (LOW/HIGH/0) for the technician
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 Hold 62 / Lockout 122 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 Slant/Fin repair.
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Parts often behind Slant/Fin error Hold 62 / Lockout 122
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Slant/Fin Error Hold 62 / Lockout 122 Repair Across Metro Vancouver
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