First, an assumption must be made that you are asking about a clothes dryer rather than a dryer that removes moisture from a gas.
If that's the case, a GAS fired dryer would connect to a standard 120V outlet to operate the motor and controls. In that case, a broken or damaged 240V/30A breaker would not be involved in the operation of the dryer.
HOWEVER...
An ELECTRIC dryer may use half of the 240 V to operate the motor and controls, and still use the full 240 V to energize the heating element. If/when that happens, it is possible that a faulty breaker could cause what you describe.
As always, contact a qualified electrician or handyman service to repair or replace electrical components in your home.
there are several reasons, an easy one to check is the breaker or fuse panel if one side of the breaker has tripped(not completely unheard of) or if one fuse has blown the dryer may still run but not heat. there are also several safeties in the electrical circuit that fail the element only and will allow the motor to run but should be attended to by a qualified individual.
First make sure the vent is not plugged.
who invented the clothes dryer that used heat from the stove
You may use it but it's not safe to do so. The reason is,if a fault occurs in the dryer such that the current being drawn by the dryer increase but it's still lower than 40Amps,the current will heat the insulators of the electrical cord which will gradually destroy the insulator and in extreme case,it might burn the insulator causing fire.
filter dryer
The Kenmore Gas Dryer will not heat and dry clothing.
G T Sampson invented the clothes dryer
A hair dryer
a blow dryer
Heat energy
The heat from the hair dryer acts like hair straightners i suppose?
Some, but not all, because some have a brushed finish that can be damaged by dryer heat.