Dryer Not Heating and The Most Common Fix

Introduction

If your dryer is not heating or not turning on, this guide will help you troubleshoot common issues and provide practical solutions. We’ll walk through the disassembly of a dryer, identify potential problems, and explain how to fix them using a Maytag Performa dryer as an example.

Step 1: Identify Your Dryer Type

• Determine if your dryer is gas or electric:

  • Look behind the dryer:
    • Gas dryer: Will have a gas line (flexible or solid pipe).
    • Electric dryer: Will have a thick power cord plugged into a 240-volt outlet.

• Find the model and serial number:

  • Usually located inside the door or on the door panel. This information is essential for ordering parts.

Step 2: Disassemble the Dryer

• Safety first:

  • Unplug the dryer to prevent electrical shock. For gas dryers, also turn off the gas supply.

• Remove the lint screen:

  • Identify its location (front or top) and set it aside.

• Open the top panel:

  • Locate the clips (usually two) between the top lid and the front panel.
  • Use a screwdriver to press the clips and lift the top panel.

• Remove the front panel:

  • Unscrew the two screws inside the front panel.
  • Lift the front panel to detach it from clips at the bottom.

Step 3: Check for Common Issues

• Inspect the thermal fuse:

  • The thermal fuse is a safety device that prevents overheating.
  • Located near the lint screen housing. Common signs of failure are clogged lint screens or air ducts.

• Test the thermal fuse:

  • Use a multimeter set to continuity.
  • Disconnect the wires from the thermal fuse and check for continuity:
    • If there’s continuity, the fuse is good.
    • If there’s no continuity, replace the thermal fuse.

• Examine other components:

  • Igniter (Gas Dryer): Check if it glows when the dryer is on. If not, test it for continuity.
  • Gas Valve Coils: Check for continuity across the pins. Replace if necessary.
  • Operating Thermostat: Test similarly to the thermal fuse.

Step 4: Inspect and Clean

• Clean the lint screen and housing:

  • A clogged lint screen can cause heating issues. Pour water over the lint screen:
    • If water pools, the screen is clogged and needs cleaning or replacement.

• Check the venting system:

  • Ensure there are no obstructions in the venting hose or outside vent hood. Clean any lint buildup.

Step 5: Reassemble the Dryer

• Reattach the front panel:

  • Align the clips and screw the panel back into place.

• Close the top panel:

  • Ensure the clips are secured, and the top lid is properly closed.

• Reconnect power and gas:

  • Plug the dryer back in or reconnect the gas supply.

Conclusion

Troubleshooting a non-heating dryer involves identifying the type, safely disassembling it, and checking key components like the thermal fuse, igniter, and gas valve coils. Regular maintenance, such as cleaning lint screens and vents, can prevent many issues. If problems persist after these checks, it may be time to consult a professional.