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the red caps have been in ever since i moved to this house, the boiler has been running fine with them in. im thinking the o rings in the pump my be faulty, i dont want to spend alot of money on the boiler as i am changing over to gas in about three months

after deciding that the pump was not pressurizing, i left it thinking i needed a new pump. I went back to it after about 15 mins and noticed there was a leak coming from a red plastic cap/blank. So im now a bit stumped, because if it can leak oil, it will also put air. So the pump might not...

i have a danfoss msla032 071b1111 which is faulty, there is a good oil supply but this is not pressurising by the pump, so im going to replace the pump. what pump is the best to replace with. any help will be welcomed