American Dryer Corp. ADG-330D - Manual (Page 38)

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4. Failed steam damper 24 VAC pneumatic solenoid switch.
5. Failed steam damper piston.
U. Dryer operates, but is taking too long to dry...
1. Exhaust ductwork run is too long or is undersized...back pressure must be no less than 0 and cannot
exceed 0.3 inches (0.74 mb) water column (W.C.).
2. Low and/or inconsistent gas pressure (gas models only).
3. Insufficient make-up air.
4. Poor air/gas mixture at burner (gas models only)...yellow or poor flame pattern. Adjust gas burner air
adjustment shutters.
5. Lint drawer/screen is not being cleaned out on a regular basis or often enough.
6. Extractors (washers) are not performing properly.
7. Sail switch is fluttering...restriction in exhaust (gas and electric models only).
8. Failed dual microprocessor controller (DMC) computer temperature sensor...temperature calibration is
inaccurate.
9. Failed DMC computer...temperature calibration is inaccurate.
10. Failed burner/oven hi-limit (gas and electric models only).
11. Failed basket (tumbler) hi-limit thermostat.
12. Steam damper system (steam models only) not functioning properly...
a. Steam damper is sticking closed or is not adjusted properly.
b. Leak in pneumatic (air) system.
13. Failed electric element (electric models only).
14. Lint accumulation in location exhaust system.
V. Condensation on main door glass...
1. Too long, undersized, or improperly installed ductwork.
2. Exhaust back draft damper is stuck closed or partially closed.
3. Restriction in exhaust ductwork.