I heve a propex HS2000 in a 74 Bay window. The heater will operate but will not switch off at the3-way panel. I have to take off the heater cover and unplug the powwer switch. The advice from Propex is the PCB is at fault and needs replacing - it is VERY expensive! I have had a technician check the PCB and he can see nothing wrong with it. Has anyone any suggestion please?
Not specifically, but there is a 2009 thread on a different Propex heater which has a few ideas & there may be others. You’ll need to search the forum.
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