F.10
FAULT CODE
Glow-worm
Flow Temperature Sensor Short Circuit (Energy)
Medium Severity
Engineer Required
On Glow-worm Energy boilers, F.10 indicates the flow temperature sensor has short-circuited.
Step-by-Step Fix Guide
-
Step 1
Turn off the boiler
-
Step 2 Engineer only
Call a Gas Safe engineer to replace the sensor
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.