Have you checked the lower thermistor at the back?
Remove the back panel and from there look on the left hand side and you will see a black hose going from the side of the drum to the plastic condenser unit.
In that black hose is the lower thermistor. Check the wiring there as this is very common for the wires to break in there.
Refix the wire if its broken and retry the dryer side and see what happens.
Check that and see how it goes from there and let me know.