0A1
FAULT CODE
Alpha
Ignition Failure (ProTec Plus)
Medium Severity
Engineer Required
On Alpha ProTec Plus commercial boilers, 0A1 indicates ignition failure — gas supply or valve issue.
Step-by-Step Fix Guide
-
Step 1
Check gas supply
-
Step 2 Engineer only
Call a Gas Safe engineer
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.