Question about Whirlpool LGR7646E Dryer
Loaded dryer, set timer and closed door. The gas burner lighting process began immediately before pushing start. When start was pushed, drum did not turn, only heard hum. Checked belt and pulley and they are fine.
The heat is regulated with a Klixon mounted next to the blower housing
near the vent pipe so it can judge the temperature of the air coming
out of the drum.Right next to it is a melting type fuse. If the dryer
runs and gets too hot the fuse will melt.But the dryer will still
run. So if the fuse is good(continuity) and the dryer control(cycle)
thermostat is also good then you should have power going to the gas
valve assembly when the machine is running unless the timer is in the
no heat or wrinkle free/cool down mode. When the gas valve assembly is
energized the flame sensor mounted outside the burner chamber detects the heat from the ignitor.
When the heat is very intense then the sensor shuts down the ignitor and that frees up the power so that the coils can be fully energised
and open the gas gates. The gas comes out and hits the red hot ignitor
and you have ignition. It stays on for maybe 2 or 3 minutes or until
the control thermostat is satisfied and shuts down power to the gas
Posted on Dec 15, 2008
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Posted on Jan 02, 2017
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