Can I reset my Slant/Fin boiler to clear the Fan or Air Pressure Fault code?

You can reset once if your manual says it's safe. If the code returns, stop resetting — repeated resets on a genuine fault, especially gas or overheat faults, can be unsafe and may worsen the problem. Book a licensed repair instead.

Is the Fan or Air Pressure Fault fault dangerous?

Treat it as urgent. This code involves systems where continued operation can be unsafe. Turn the boiler off if it keeps recurring and call for a licensed repair; if you smell gas, leave and call your gas utility's emergency line.

How much does it cost to fix a Slant/Fin Fan or Air Pressure Fault fault?

Cost depends on the underlying cause — some causes (like low pressure or a dirty sensor) are minor, while others (like a gas valve or control board) cost more. We diagnose first and give you a clear price before any repair.

Slant/Fin Error Code

Slant/Fin Error Code Fan or Air Pressure Fault

The fan or air-pressure proving failed.

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Licensed & Insured Gas-Certified Technicians Serving Vancouver Since 1999

If your Slant/Fin combi boiler is showing error code Fan or Air Pressure Fault, here's what it means: The fan or air-pressure proving failed. This is an urgent fault. Stop using the boiler if it keeps recurring and book a licensed repair promptly — especially if it involves gas, ignition, overheating or the flue.

Slant/Fin boilers report faults using error codes on the vhs victory combi and chs wall-hung display. Knowing the code helps a technician arrive prepared with the right parts, which usually means a faster, lower-cost repair.

What causes the Fan or Air Pressure Fault code?

Error Fan or Air Pressure Fault on a Slant/Fin boiler is most commonly caused by one of the following:

Blocked vent
Blower fault
Air-pressure switch fault

What you can safely check first

Note the exact code and your boiler's model number
Check the pressure gauge — low pressure triggers many faults
Confirm the gas supply is on and other gas appliances work
Reset the boiler once, per the manual, only if it's safe to do so
If the code returns, stop and call a licensed technician

Why this needs a licensed technician

Resolving a Fan or Air Pressure Fault fault almost always involves the gas, combustion, sensor or pressurized side of the appliance. Under BC's Safety Standards Act, that work must be performed by a licensed gas fitter — and doing it correctly protects your warranty and your safety. We diagnose Slant/Fin boilers, carry common parts, and verify clean combustion before returning your boiler to service.

Smell gas or suspect carbon monoxide? Leave now.

If you smell gas, hear hissing, or your CO alarm sounds, leave the building immediately and call your gas utility's emergency line from outside. Do not operate switches or relight the appliance. Once you are safe, call us for a licensed repair.

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Frequently Asked Questions

Other Slant/Fin codes & help

Slant/Fin Ignition FailureThe boiler failed to establish a flame and locked out.Slant/Fin Flame LossThe flame was detected then lost during operation.Slant/Fin Overheat / High LimitWater temperature exceeded the safe limit.Slant/Fin Low Water PressureSystem pressure is below the minimum.Slant/Fin DHW Flow FaultA hot-water flow or flow-sensor fault on the domestic hot…All Slant/Fin Error CodesFull list

Fix Your Slant/Fin Fan or Air Pressure Fault Fault

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