when i bleed my radiators with the pump running the radiators actually suck air in. I have been told that it may be my pump running to fast so have just checked the speed and yes it was on set to 3 I have set it to 1 but I still cant bleed them but it does not sound like the air is getting sucked in. any ideas the pump is a myson sd53 and the boiler is a baxi back boiler type. i can bleed them ok with the pump off.
- posted
20 years ago