Re: MFI Schreiber apm6855
power to fan does not mean that the fan motor is working….
“”I have checked the fan out which is a runner”””… have you physically seen it work ?
Before checking out anything else you need to assertain fully that the fan works. Fan motors failures are common on these.
They are not the only problem areas however but the easiest to rule out.
Also full serial number/model number, there are two versions of this if I remember correctly.
Steve