The fuse/reset button that the owner's manual is referring to in this situation is the house breaker or fuse for your dryer's electrical outlet. The dryer will run if only one leg of voltage is supplied to the dryer outlet. If the second leg of 120 volts is not supplied to the 240 volt outlet, the dryer will not heat. If the house fuse or breaker is not tripped, I recommend checking the voltage at the dryer outlet using the diagram in the image below. NOTE: You should only conduct this test if you are completely confident that you can safely measure this live voltage using a volt/ohm meter.
If the outlet has proper voltage, then the following failures could prevent your dryer from heating:
Bad heater relay
Open thermal cut-off fuse
Open high limit thermostat
Failed thermistor (temperature sensor)
Bad motor centrifugal switch
Failed electronic control board
Wiring failure between the components
Bad heating element
A technician is normally needed to diagnose and repair this type of heating failure.
If you want to diagnose and repair this failure yourself, resubmit your question with additional details for more technical help with this problem.