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