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How can I fix my Potterton Boiler?

We have a Potterton Boiler 16-22 which is unreliable starting up
Emma East, December 2010
Given it's age, you should look to change it regardless.
The possible faults are many and varied, they could include the gas valve (depending on which model 16-22 you have age-wise), which has recently gone obsolete.

Carefree, December 2010
link Click here to see other fixes for Potterton 16-22.