Whirlpool AWZ3518 no heat

Had a quick look at one of these today, not seen this type of one before & I don’t see too much Whirlpool stuff. Have done a few of the earlier type with ring type element & solid aluminium heater.
Element seems grand, theres a row of stats’ and an n.t.c on it and all seem to be reading fine.

There are two boards and none seem to have any damage, no burning or discoulouration.
Wondering if anyone has any service info’ on them, circuit diag’, test program or the like. Or are there anything that gives problems on them.

Thanks
Seamy