h. Troubleshooting Flow Chart - Quick Reference...

First Visual Check

No Spark And System Does Not Work

Is power available

to primary?

Is 24 VAC available

 

 

 

 

at transformer?

 

 

 

 

Is 24 VAC present from terminal

 

 

 

 

No

Yes

 

 

 

 

THS2 to ground?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No

Yes

 

 

 

 

 

 

No

Yes

 

 

 

 

 

 

Determine why

voltage is not

present.

Replace

Transformer.

 

 

 

Are thermostat contacts and

 

 

 

limit control contacts closed?

Close

 

 

 

 

Contacts.

 

 

No

Yes

 

 

 

 

 

 

 

Check continuity of wiring to determine why voltage does not exist at THS2.

Is jumper installed from terminal 5 to ground?

Install

 

 

No

Yes

Jumper.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Open thermostat contacts for 30 seconds. Close contacts and wait for prepurge (if applicable)

period. Is spark present now?

 

 

 

 

 

 

 

 

 

 

 

No

 

 

 

 

 

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Turn off supply voltage.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check high voltage cable.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Is it securely attached to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

spark transformer?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Is condition of high voltage

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

cable good (not brittle,

 

 

 

 

No

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

burnt, or cracked)?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Correct

 

 

 

 

 

 

 

 

 

No

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replace

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Is spark electrode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ceramic cracked

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

or is electrode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

grounded out?

 

 

 

 

 

 

 

Replace

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Johnson Control

 

 

 

No

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

module G760/761

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replace electrode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

assembly.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

System was in lockout.

Observe a complete operating

cycle to determine why control locked out.

2 0

Page 24
Image 24
American Dryer Corp AD-200 PHASE 7 service manual First Visual Check, Troubleshooting Flow Chart Quick Reference

AD-200 PHASE 7 specifications

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In conclusion, the American Dryer Corp AD-200 PHASE 7 is a powerful, efficient, and durable commercial dryer that meets the demands of high-volume laundry operations. With its advanced technological features, customizable controls, and energy-saving capabilities, the AD-200 PHASE 7 not only enhances operational efficiency but also provides excellent value for commercial laundry providers. Businesses looking to invest in reliable drying solutions will find the AD-200 PHASE 7 an outstanding choice.