If 0 ohms (0 Ω) is measured;

Check RTD (Resistive Temperature Device)

Check wiring to the RTD (refer to the main panel wiring diagram)

Check wiring to the HI-LIMIT temperature controller (refer to the AD-464 Main Panel Wiring Diagram).

If RTD (Resistive Temperature Device) measures in the range of 100 ohms (100 Ω);

Check wiring to the HI-LIMIT Temperature Controller (refer to the AD-464 Main Panel Wiring Diagram).

If wiring checks out;

Replace the HI-LIMIT Temperature Controller

Retest

3b) If there is no display on the HI-LIMIT Temperature Controller:

Check that main power is “ON;” front panel “BLUE” indicator.

Check that ALL “EMERGENCY STOP” (E-Stop) buttons are disengaged (out).

Check fuse 10’s blown fuse indictor.

Check wiring; (refer to the AD-464 Main Panel Wiring Diagram).

Retest

7.“DRUM FAULT” Message

PLC (Programmable Logic Controller) MESSAGE “DRUM FAULT”

a)PROBABLE CAUSES;

1a) Stop motion detector module or sensor. With control voltage “ON” (“GREEN” push-button), use the pendant control in “LOAD POSITION” to rotate the tumbler (basket).

NOTE: Input #0,10 on the RTD (Resistive Temperature Device), stop the tumbler (basket) and wait for device’s latched relay to de-energize. The time from when the tumbler (basket) stopped to the relay de-energizing should be 15 to 20 seconds.

If the de-energizing time is satisfactory, the unit is operating correctly;

• Check circuit wiring, and retest (refer to the AD-464 Main Panel Wiring Diagram).

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American Dryer Corp ADG-464 manual Drum Fault Message