You can check if your clothes dryer's heat source is working without running it on high for an extended period of time by following these steps:
Start with an empty dryer: Ensure there are no clothes inside the dryer before conducting this test.
Set the dryer to a high-heat cycle: Turn on the dryer and set it to the highest heat setting available. This will help you determine if the heat source is functioning properly.
Wait for a few minutes: Allow the dryer to run for about 5-10 minutes. During this time, pay close attention to any changes in the dryer's behavior.
Feel the air inside the dryer: Open the dryer door slightly and carefully feel the air inside. You should be able to feel warm air coming out. If the air is cold or just slightly warm, it might indicate a problem with the heat source.
Inspect the lint trap and exhaust vent: While the dryer is still running, check the lint trap to ensure it is clean and free of lint build-up. Clogged lint traps can restrict airflow and affect the dryer's heating performance. Also, check the exhaust vent outside to ensure it is not blocked.
Check for any unusual noises: Listen for any strange or unusual noises coming from the dryer. Squealing or grinding noises might indicate an issue with the dryer's heating element or other components.
Consult the owner's manual: If you are unsure about the normal operating temperature or performance of your specific dryer model, refer to the owner's manual. It should provide information on the expected temperature range during operation.
Remember, this is a basic test to check the initial functionality of the heat source. For a more thorough assessment or if you suspect there's a problem with your dryer, it's best to consult a professional technician or appliance repair service. They have the expertise to diagnose and fix any issues with your clothes dryer safely. Additionally, they can perform tests that go beyond this basic check to ensure your dryer is working optimally.