APS Fault

High Severity Engineer Required

Air pressure switch fault.

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Step-by-Step Fix Guide

Step 1 Engineer only

Check flue for blockages

Gas Safe Reminder

Work on gas appliances must be carried out by a Gas Safe registered engineer. The steps above cover safe checks a homeowner can perform - any internal component replacement requires a qualified professional. If in doubt, always call an engineer.

APS Fault

Step-by-Step Fix Guide

Step 1 Engineer only

Are you a Gas Safe Engineer?