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Hi all, i have a potterton promax 28 he that been giving me an random e168 errors.
so far Ive replaced the actuator, diverter cartride, CH pressure switch, temp sensor, pcb and room stat (salus wireless). (All outside the combustion zone section)
It doesn't happen as frequently now after changing parts but still there.
(it also used to reach temp and kettle while not actually circulating the central heating until i change the valve cartridge)
often goes off in the night so house is freezing in the morning.
I have no issues when using DHW only.
could it be the valve cartridge not sealing with the body and letting water by?
failing that im guessing the new pcb is just as bad or venturi fan
any suggestions?
thanks
so far Ive replaced the actuator, diverter cartride, CH pressure switch, temp sensor, pcb and room stat (salus wireless). (All outside the combustion zone section)
It doesn't happen as frequently now after changing parts but still there.
(it also used to reach temp and kettle while not actually circulating the central heating until i change the valve cartridge)
often goes off in the night so house is freezing in the morning.
I have no issues when using DHW only.
could it be the valve cartridge not sealing with the body and letting water by?
failing that im guessing the new pcb is just as bad or venturi fan
any suggestions?
thanks
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