E193
FAULT CODE
Potterton
Circulation Fault (Secondary)
Medium Severity
Engineer Required
A secondary circulation fault indicating an issue with water flow that has not yet caused full lockout.
Step-by-Step Fix Guide
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Step 1
Check pressure and bleed radiators
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Step 2 Engineer only
If fault persists, a Gas Safe engineer should inspect the pump and heat exchanger
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.