Replaced thermistor (thermostat, thermal fuse). 30 mins removal & trouble shooting (tried resetting - no go). Hung oven back in wall an ordered part. Part arrived timely (actually a day before promised). Pulled oven, replaced part an reset in wall. Fired it up. Disappointed in durability of original thermistor. Had to reset several times previously. If I'd had a repair call, I'd paid at least a couple hundred each call, 2 trips, order parts replace or reset.