I was given the above model dryer with s/n M25124061 by a neighbor with the info that it would not start or heat . I checked the obvious switches and thermostats and found what I thought was the problem of the push to start switch. I replaced it but it did not correct the problem. All of the thermostats and fuse and door switch are working and no problems were found. The timer is not running however. I am looking for advice on any other area to check. HELP