Tony, your dryer model is LNC7764A71, not LCN. Direct link to breakdown diagrams and parts for
Model LNC7764A71.
Check the thermal fuse for continuity (unplug the dryer power cord first!). This is an electric dryer, so it needs 220 volts to operate. You would only have 110 volts at the timer or at the door switch. There are two dryer circuit breakers inside the house subpanel. They're side by side and are hopefully marked as "dryer". One of them might be tripped. Reset both breakers. If you know how to use a voltmeter, make sure there is 220 volts at the dryer wall socket.
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Wiring diagram for LNC7764A71
Thermal fuse now comes as a kit which includes the hi-limit thermostat. Replace the fuse (as well as the hi-limit thermostat) if it shows no continuity.
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Thermostat/Thermal fuse kit (instructions included)
Hope this helps.