Heating elements are more than likely OK, just damp. A good blast with a hairdryer is usually all that is required.
You do however need to stop them from getting damp.
First of all remove the condensor and make sure it is completely clean, not an easy task, a pressure hose in the back garden is the best way, just a normal hose will suffice.
Whilst you have the condensor out, lie down and reach right back into the condensor cavity and feel around for any lumps of fluff or gunge. there is a small drain channel that leads from this cavity into the pump/float housing at the back. A large plastic bag tie should be poked through this hole to clear any obstruction.
The condensor should be cleaned at very regular intervals.
That which can be asserted without evidence, can be dismissed without evidence.