E430
Potterton fault code
Potterton E430: water pressure temporary fault or test failed (also shown as 166)
Engineer only
Potterton describes E430 on Potterton Assure (in Baxi's fault table) boilers as: water pressure temporary fault or test failed (also shown as 166).
What you can safely do
There is nothing you can safely do yourself with this one. Leave the boiler off and book an engineer.
Call a Gas Safe engineer if
- Book a Gas Safe registered engineer.
Find a Gas Safe engineer near you
Opens the official Gas Safe Register search.
Applies to: Potterton Assure (in Baxi's fault table). Codes can differ between models, so check your manual.