American Dryer Corp AD-200 PHASE 7 service manual First Visual Check

d. Troubleshooting Flow Chart - Quick Reference...

First Visual Check

(Does Ignitor Spark?)

Computer/Timer Calls For Heat

			Is 24 Volts
Is spark evident (on)			present across DSI Module
		No
at Ignitor Assembly?			terminals
			TH and COM?
				Yes
	Yes

Open circuit to DSI System.

No Check the 24 VAC power source Sail Switch and Hi-Limit.

Go To Chart 2

Replace the DSI Module. Energize system and check for proper operation.

Check

High Voltage (HV) Lead for nicks or cracking,

where sparking to ground may

occur. Is this wire

damaged?

No

Visually

inspect Spark

Electrode Assembly. Is ceramic cracked or Spark Electrode incorrectly gapped?

No

Visually

inspect High

Voltage (HV) Wire

connections at both DSI Module

and Ignitor Assembly.

Are connections

secure?

Yes

Remove

High Voltage (HV) Wire from

YesDSI Module and visually inspect. Is conductor

visible at end of

HV Wire?

	Repair or replace HV Lead
Yes	Assembly.
	Energize system and check
	for proper operation.

If cracked, replace Electrode Assembly. Correct gap size

Yes is 1/8" (+/- 1/32").

Energize system and check for proper operation.

	1. At DSI Ignitor Assembly be
		sure HV Wire is secure in
		the boot as well as the
		connection to the Ignitor
		Probe Assembly.
No
	2. At DSI Module, center the
		end of the HV Wire with a
		Spike Terminal. Energize
		system and check for
		proper operation.

Cut the end off of the HV Wire 1/4" at a time until conductor becomes visible and is flush with the insulation.

No Reconnect the HV Wire to the Spike Terminal on the DSI Module.

Energize system and check for proper operation.

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