As already suggested, check the thermal fuse in the transformer as the first thing. Next, check for cracked solder joints at connectors and at the large capacitors at the back.
And I might add that if the thermal fuse melted, you have to find the cause of that on the main board. A shorted cap, diode… investigate. Something I still love doing, even though my abilities decline little by little. Enjoy.
.
.
