E28
FAULT CODE
Potterton
Frozen Condensate / Flame Failure (Winter)
Medium Severity
DIY Check Possible
Flame failure associated with a frozen condensate pipe in cold weather. Identical to Baxi E28 — Potterton and Baxi share the same fault code system.
Cold Weather Note
E28 on a Potterton boiler in freezing weather almost always means a frozen condensate pipe.
Step-by-Step Fix Guide
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Step 1
Locate the condensate pipe on the outside wall and thaw with warm water
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Step 2
Wait for the blockage to clear (you should hear gurgling)
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Step 3
Reset the boiler
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Step 4
If fault persists, 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.