My husband has one and was an electrician before he retired, so yes, he can use one.
My husband reports no open circuits.
My husband has just gone to check the element. Incidentally, if I switch off at the wall plug and remove the plug, then plug in again and switch back on, the error message disappears and the machine can be operated, but still the dryer won't heat up.
The element is reading 238v. My husband pressed something that looks like a tiny button on top of the ?thermostat and the condenser started heating up. Hope this makes sense.