My dryer ran but with no heat. I'm searching for a repair manual for my model NED7200TW. After a short service call by a repair tech, he left my home with my check for parts and my dryer in several pieces, he hasn't returned my phone calls and I'm concerned that he may not return to complete the job, (four days have passed). Initially he diagnosed the problem as a bad heater element pn 3500119 and a bad thermistor pn 35001191, the payment was for the parts. I'm afraid that I may end up completing the job myself, but without help from a repair manual, it may take quite a bit of time to complete the reassembly. To make matters more suspicious, I checked the continuity on the heater element with my multi meter and found it to be ok, (got a tone after touching both terminals) the thermistor appeared to be bad with the multi meter. Thanks for any advice and or help in advance.