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I have had a problem with my Potterton Prima F 60F for a while now. The boiler seemed to stay on for 5 minutes and then shut down for 10 minutes, almost as if it was cooling down and would then kick in and the cycle is repeating. I have changed the air pressure switch and the PCB, and it...

Hi, I drained the system (radiators, F&E tank) as there was sludge in one of the bedroom radiators. System drained through lowest level radiator. Have now added sludge remover in the F&E tank, but water not filling up in the radiators. Have opened bleed valves in the ground floor radiators...

My 1st posting to this site and someone can help. I have a Potterton Prima F60. The boiler keeps shutting down intermittently. Its on for 5 mins or so and then shuts for 10 mins or so and then starts again. It never reaches the set temperature for both the hot water and the central...