E05
FAULT CODE
Sime
Flow Sensor Fault
Medium Severity
Engineer Required
The central heating flow NTC sensor is faulty or has an open circuit.
Step-by-Step Fix Guide
-
Step 1 Engineer only
A Gas Safe engineer should test and replace the flow NTC
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.