American Dryer Corp. AD-60 - Manual (Page 54)

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3. Low and/or inconsistent gas pressure (for gas models only).
4. Insufficient make-up air.
5. Poor air/gas mixture at burner, yellow or poor flame pattern; adjust gas burner air adjustment shutters (for
gas models only).
6. Lint screen is not being cleaned on a regular basis or often enough.
7. Extractors (washers) are not performing properly.
8. Sail switch is fluttering, restriction in exhaust ductwork (for gas models only).
9. Failed microprocessor controller (computer), temperature calibration is inaccurate.
10. Failed microprocessor temperature sensor, calibration is inaccurate.
11. Failed oven hi-limit (for electric models only).
12. Steam damper system is not functioning properly (for steam models only)...
a. Damper sticking closed.
b. Leak in pneumatic (air) system.
13. Failed electric oven element(s) (for electric models only).
R. Condensation on main door glass...
1. Too long, undersized, or improperly installed ductwork.
2. Back draft damper is sticking in partially closed position.
S. Dryer is making scraping noise at basket (tumbler) area...
1. Check for object caught in basket (tumbler)/wrapper area.
2. Basket (tumbler) is out of proper alignment...
a. Check both vertical and lateral alignment.
b. Check gap between front panel and basket (tumbler), setscrews may have come loose, and basket
(tumbler) walked forward or backwards.
3. Loose basket (tumbler) tie rod.
4. Failed basket (tumbler) support.
T. Excessive noise and/or vibration...
1. Dryer is not leveled properly.