American Dryer Corp. Super AD-30 - Manual (Page 52)

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4. Failed ignitor/flame-probe assembly.
5. Failed Direct Spark Ignition (DSI) module.
6. Failed gas valve.
Q. No heat (for STEAM MODELS ONLY)...
1. Fault in lint chamber sensor bracket hi-heat (limit) protector thermostat.
2. Failed microprocessor controller (computer).
3. No (external) compressed air to steam damper (80 psi required).
4. Failed steam damper 24 VAC pneumatic solenoid switch.
5. Failed piston.
6. Steam damper stuck closed.
R. Dryer operates but is taking too long to dry ...
1. Exhaust duct work run too long or is undersized...back pressure cannot exceed .3 inches Water Column
(W.C.).
2. Restriction in exhaust ...
a. Exhaust back draft damper is sticking partially closed.
b. Restriction in duct work...check duct work from dryer all the way to the outdoors.
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 not being cleaned on a regular basis or often enough.
7. Extractors (washers) not performing properly.
8. Sail switch is fluttering...restriction in exhaust (for GAS MODELS ONLY).
9. Failed microprocessor controller (computer)...temperature calibration is inaccurate.
10. Failed microprocessor temperature sensor...calibration is inaccurate.
11. Failed burner/oven hi-limit (for GAS and ELECTRIC MODELS ONLY).
12. Failed lint compartment.
13. Steam damper system not functioning properly (for STEAM MODELS ONLY) ...