The
problem is obviously in the heating circuit which is basically composed
of the heating element, thermal cut-off, high-limit thermostat, cycling
thermostat, and the motor centrifugal switch. The most common part that
causes the dryer not to heat is the thermal cut-off and/or the
high-limit thermostat. Verify this
condition by bypassing the said components.
Disconnect power then access
the thermal cut-off (cut-out) and the high-limit thermostat. Disconnect
the wires of each component then connect them together and insulate it
properly. Reconnect power then start the dryer. The problem is
indeed in the thermal cut-off (cut-out) and the high-limit thermostat if
the dryer heats up. Replace both parts and it should solve the problem.
It is an easy and cheap repair to make. Indicate the exact model number
of the dryer should you need further assistance.
Dryers with lint filter on the front.
Dryers with lint filter on the top.
Also
bypass the cycling thermostat if the dryer still doesn't heat with the
thermal cut-off and the high-limit thermostat bypassed. Check the
heating element visually for obvious broken or damaged coil. An ohmmeter
will be of great help in checking the resistance/continuity of the
heating element. Replace the heating element if broken or damaged, NEVER attempt to repair it.
The
problem is likely in the motor centrifugal switch if the dryer still
doesn't heat with good heating element and the three components above
bypassed. Indicate the exact model number of the dryer should you need
further assistance.
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