Main Door Switch; Sail Switch (Gas Models Only); Hi-Limit (Gas Models Only); Automatic Reset Thermostat - Maytag MDG-52 Service Manual

G. MAIN DOOR SWITCH
The main door switch is located in the main control panel.
When the main door opens, the switch will also open,
preventing the dryer from operating. The main door switch
is a safety device and should never be disabled.
H. SAIL SWITCH (GAS MODELS ONLY)
The sail switch is located on the rear of the machine. A sail switch consists
of a round damper plate on a lever arm which is in contact with an electric
switch. When the air blower comes on, it draws air through the gas burner.
This creates a negative pressure inside the burner box, and this negative
pressure pulls in the round damper and activates the sail switch. If there is
improper airflow, the damper will not pull in, preventing the burner from
starting.
Improper airflow can be caused by improperly designed exhaust ducting
where the duct run is too long or has too many sharp bends in it. It can also
be caused by a lack of make-up air.
I. HI-LIMIT (GAS MODELS ONLY)
A hi-limit thermostat is located at the top of the heat duct. This is an automatic reset disc-type thermostat set at 205°
F (96.11° C). If the flame in the burner should get too hot, this thermostat will shut off the burner. This is generally
caused by low airflow through the dryer.
J. AUTOMATIC RESET THERMOSTAT
This is a 190º automatic thermostat located inside the dryer
in the lint compartment above the lint drawer. This thermostat
senses the heated air after it has passed through the tumbler.
If the air temperature gets too hot, the thermostat will shut off
the burner. The dryer will not run until the air temperature
cools down. At this time, the thermostat will reset. Tumbler
and blower will run, but dryer will not heat.
K. LINT DRAWER
The lint drawer is a pullout type and is located at
the bottom of the dryer in the lint compartment.
Simply grab the lint drawer handle, slide out the
drawer, brush off the lint, and slide the drawer back
in. The lint screen must be kept clean in order for
the dryer to operate properly and efficiently.
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