Recent content by NoHotWater

Further to the question, can anyone tell me if RED INDICATOR is the main one or BLACK one? Thanks

Hi All, I have Potterton Puma 80e, which was working OK till yesterday. It has now LOW SYSTEM PRESSURE on and there is no HOT water, neither CH is working. Puma 80e Manual Says: Repressurise the Central Heating System. The pressure gauge reading is: BLACK NEEDLE: 3.4 RED NEEDLE...