Door Gets Warm And Windows Fail ? ? ? ?

[MrMarty51]

Motor, switches, or, wiring issues ?
When the front doors on My truck gets warm, from the sun, or on hot days setting in the shade, the windows will fail to function.
If the A/C is run for long enough to cool off the doors then the windows begins to once again function as they should.
I do have new door window switches setting here waiting, for the window motor/regulator components to get here from RA so while I’m waiting for those parts to arrive I’ll be dismantling them front doors and try to be mostly ready for when the parts gets here.
While the door panels are removed I’ll be checking to see what size of speakers will fit in those round grills that seems to be vacant.
Plumb in some more sound too.

 

[Will L.]

If all the windows fail, I would suspect either the relay or the switches.
A hair dryer could help the diagnostics

 

[MrMarty51]

If all the windows fail, I would suspect either the relay or the switches.
A hair dryer could help the diagnostics

Usually it starts with the drivers window and as it gets warmer the problem advances to the front passenger window. Usually both back door windows most always function, IIRC.
I forgot about these last facts until You mentioned about the relay.
After I get the door panels removed I’ll do the heat gun trick on the motors and see how they do. If those do not fail with the heat then move on to the switches.
I imagine cool of the morning would be best when everything seems to function nicely.