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B. no heat condition – American Dryer Corp. ADG-385 User Manual

Page 45

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B. No Heat Condition

The following procedure must be performed with

the microprocessor controller (computer) display

in the normal operating mode, and the heat indicator

dot on, and the L.E.D. heat output light on. Voltage

is 24 VAC unless otherwise specified.

1. Check to see if DSI module fault indicator L.E.D.

is on or flashing. If yes, refer to "DSI" Trouble

shooting Booklet. (P/N: 450142)

2. Check for voltage (approx. 25VAC) across DSI

module terminals "STAT" or "TH" and "GND."

If voltage is evident, refer to "DSI" Trouble

Shooting Booklet. (P/N: 450142)

3. Check for voltage between TB#2 and TB#7. If

voltage is evident, problem is break in wire or

termination between TB#2 and TB#7, and the

DSI module "STAT", "TH", or "GND" terminal.