Dryer not starting at all is usually a bad door switch — safety prevents operation if door not 100% closed. Easy fix.
See if any of these signs match your device — each one increases the likelihood of this fault.
These are the causes we encounter while repairing Dryer won't start — ranked from most to least common.
Bad door switch (most common)
Door not closed properly
Bad start switch
Burnt thermal fuse
Tripped circuit breaker
Bad control board
Damaged power cord
Any of the following = a danger signal — call now and don't try to fix it yourself.
On-site diagnosis, clear pricing before any work, and a documented 6-month warranty.