There are a few things that could cause your Whirlpool Duet dryer not to start. One possibility is that the dryer simply needs to be cleaned. The lint trap and the interior of the dryer should be cleared of any lint or debris. Another possibility is that the dryer needs a new belt. If the belt is old or broken, it could prevent the dryer from starting. Finally, there may be a problem with the electrical wiring or with the circuit breaker. If there is a problem with the electrical wiring or the circuit breaker, it will need to be fixed in order for the dryer to start.
1. Check the power
When your Whirlpool Duet dryer will not start, the first thing you should do is check the power. Make sure that the dryer is plugged in and that the outlet is working.
2. Check the fuse

If the power is on and the dryer still will not start, the next thing you should check is the fuse. The fuse is located in the electrical panel, and it is a small, cylindrical piece of metal. If the fuse is blown, it will be obvious because the fuse will be black and charred. If the fuse is blown, replace it with a new fuse of the same amperage.
3. Check the door switch
If the power and the fuse are both good, the next thing you should check is the door switch. The door switch is located behind the door of the dryer, and it is a small, cylindrical piece of metal. If the door switch is bad, it will be obvious because the switch will be black and charred. If the door switch is bad, replace it with a new switch.
4. Check the thermal fuse
If the power, the fuse, and the door switch are all good, the next thing you should check is the thermal fuse. The thermal fuse is located in the electrical panel, and it is a small, cylindrical piece of metal. If the thermal fuse is bad, it will be obvious because the fuse will be black and charred. If the thermal fuse is bad, replace it with a new fuse.
5. Clean the lint filter
One of the most common causes of a dryer that will not start is a clogged lint filter. The lint filter is located in the door of the dryer, and it is a small, mesh screen. If the lint filter is clogged, it will be obvious because there will be a lot of lint on the filter. Clean the lint filter with a brush or a vacuum cleaner.
6. Check the vent
Another common cause of a dryer that will not start is a clogged vent. The vent is located on the back of the dryer, and it is a small, metal pipe. If the vent is clogged, it will be obvious because there will be a lot of lint on the pipe. Clean the vent with a brush or a vacuum cleaner.
7. Reset the circuit breaker
If all of these things have been checked and none of them have fixed the problem, there may be something wrong with the circuit breaker. The circuit breaker is located in the electrical panel, and it is a small, rectangular piece of metal. If the circuit breaker is bad, it will be obvious because it will be black and charred. If the circuit breaker is bad, replace it with a new breaker.