Baxi Solo WM 50/4 PF

[muddy waters]

Intermittent fault. Pilot lights OK but main burner doesn't always light. If I isolate the electrical supply after the fault occurs and leave for a while, then re-connect, the boiler works fine for a week or so and then the fault occurs again. Fan works fine so I'm thinking maybe air pressure switch, solenoid or maybe poor electrical connection. Any advice much appreciated. Thanks Muddy

 

[muddy waters]

Update

Have now checked the air pressure switch, solenoid and electrical connections which all seem OK. Also checked the gas rate which is only about half of that stated in mi's. Pilot light still lights immediately but main burner now even more reluctant to light. The only other appliance on the installation is a gas fire which is much further from the meter than the boiler and works fine. Any advice or ideas welcomed. Thanks Muddy

 

[muddy waters]

Update - Problem Solved

Gas valve replaced and boiler now working fine. Cheers Muddy