promax

Hi all, Hoping someone will be able to help me please. I have a Potterton ProMax Combi 28 HE Plus, and recently the hot water pressure seems to have dropped, I can get hot water on my taps but only when the demand is for hot water only, as soon as you mix it with cold water the hot water light...

Problem: Downstairs radiators keep coming on by themselves, even when thermostat/programmer would indicate CH either shouldn't be on at current temp/time or programmer is deactivated but CH still comes on. Upstairs rads function at the correct time/temp as per the programmer. Tried so far...

Hi all, i have a potterton 28 he+ that been giving me an random e168 errors. so far Ive replaced the actuator, diverter cartride, pressure switch, temp sensors pcb and room stat (salus wireless). doesn't happen as frequently now but still there. usually more after having used hot water. im...

So I have a Potterton Promax HE boiler, I have not used the CH all summer; the boiler has worked fine all summer for the DHW. Now it’s getting colder I went to put the CH on and for some reason it doesn’t work. When the selector switch is on CH & DHW the LED does not come on for CH but it does...

Hi All, Our Potterton Promax has developed an annoying fault where it doesn't always light - usually first thing in the morning, so when we all want the shower and a warm house it doesn't happen. It has been known to happen in the evenings as well. When it doesn't light, it goes through the...