American Dryer Corp MLS-460 manual Power Malfunctions, Main Disconnect Will Not Turn On

A. POWER MALFUNCTIONS

1.Main Disconnect Will Not Turn On

a.PROBABLE CAUSES;

1)Sprinkler isolated power source “OFF” or disabled.

2)OL12 tripped or sprinkler circuit defective.

3)Sprinkler activated.

4)Sprinkler will not reset.

b.POSSIBLE SOLUTIONS;

1)Verify “red” “Sprinkler Power” on main panel to be illuminated.

•If “ON” go to paragraph #3 below

•If “NOT ON” verify isolated sprinkler power source to the dryer Check sprinkler supply voltage at TB1 Pin #4 and Pin #5

•If “OK” go to paragraph #2 below

•If none, check incoming line voltage

•If none, check fuse disconnect switch

2)Check if OL12 has tripped.

•If “OK” go to paragraph #3 below

•If tripped, check sprinkler circuit, then reset and test.

3)Check if sprinkler is activated...is the “SPRINKLER RESET” button “lit”?

•If “YES,” press “SPRINKLER RESET” Does the sprinkler reset?

•If “YES,” attempt to turn “ON” the main disconnect again

•If “NO” go to paragraph #4 below and on page 45

4)Sprinkler will not reset, verify that the sprinkler hi-limit has not tripped. (“green” light is off.)

•If it has not tripped, check setting to be 550º F (273º C) and verify that the sprinkler RTD (Resistive Temperature Device) is connected and has 100 ohms (100 W) at 32º F (0º C)/109 ohms (109 W) at 75º F (24º C)

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