Learn how your appliance is supposed to operate so you can determine if it is malfunctioning.
Gas dryers have a gas burner instead of the electric heater coils in an electric dryer. Gas burners and their components are very similar for all of the major brands so this generic section will usually help you with most of your heating problems.
Actual observations of the burner and burner ignitor functions will be required to start to diagnose heating problems.
Many gas dryers have an access panel that can be removed to observe operation of the gas burner assembly. That panel is always located in front of the dryer cabinet at the bottom. Sometimes it exposes the entire bottom of the interior of dryer and sometimes it only lets you watch the burner.
Some gas dryers are designed with a one piece front panel. On these there is sometimes a 'peep hole' in the lower part of the front panel. That peep hole often has a snap-in plug covering it which can be removed to observe operation of the burner and ignitor.
Other models with a solid front have no peep hole making observation of the burner operation difficult. The dryer and burner will not function properly with the whole front panel removed.
Will Not Heat
The drum turns but the igniter does not glow:
The drum turns and the igniter glows, cycling on and off:
The drum turns and the igniter glows continuously:
Dries Too Slowly
All of the information in these Appliance Clinic procedures is provided FREE OF CHARGE. No liability is assumed by the author for the accuracy of the contents or damages caused by the use of these procedures.