E164
FAULT CODE
Baxi
Pressure Sensor Fault
Medium Severity
Engineer Required
The water pressure sensor is giving an incorrect or out-of-range reading.
Step-by-Step Fix Guide
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Step 1
Check system pressure on the gauge
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Step 2
If pressure is correct but E164 persists, the sensor may be blocked or failed
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Step 3 Engineer only
A Gas Safe engineer can clean or replace the pressure 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.