Remove blower/heater cover at rear. You will see two thermostats. Remove the three wire connections and bridge them using a heavy enough electrical wire ensuring that no wire is in contact with the machine. Do a trial run but beware not to burn out the element, so keep a hand on it's casing to feel if it is heating up. If no joy try bridging the second themostat (2wires)
Hope this helps!
Themadfifer, August 2011