American Dryer Corp Super AD-30 manual Dryer operates but is taking too long to dry load

2.Failed heat selector switch

H.Dryer operates but is taking too long to dry load...

1.Heating unit cycling on hi-limit thermostat (for GAS and ELECTRIC MODELS ONLY).

2.Steam damper binding in partially open position (for STEAM MODELS ONLY).

3.Lint and/or dust accumulation on steam coil fins (for STEAM MODELS ONLY).

4.Housekeeping ...

a.Lint screen and lint compartment not being cleaned on a regular basis.

b.Lint accumulation in location exhaust system.

5.Insufficient make-up air.

6.Failed hi-limit thermostat (for GAS and ELECTRIC MODELS ONLY).

7.Failed lint compartment automatic (225º) safety thermostat circuit.

8.Extractors not performing properly.

9.Low and/or inconsistent gas pressure (for GAS MODELS ONLY).

10.Gas supply may have low heating value (for GAS MODELS ONLY).

11.Sail switch is fluttering (for GAS and ELECTRIC MODELS ONLY) ...

a.Restriction in location exhaust system.

12.Fault in electric oven element circuit (for ELECTRIC MODELS ONLY) ...

a.Failed element(s).

b.Failed oven contactor (relay).

13.Exceptionally cold / humid or low barometric pressure atmosphere.

14.Blower (fan) motor rotation direction is incorrect.

I.Dryer is cycling on hi-limit thermostat (for GAS and ELECTRIC MODELS ONLY)...

1.Blower (impellor/fan) motor failure.

2.Blower (impellor/fan) motor rotation direction is incorrect.

3.Insufficient make-up air.

4.Restriction in location exhaust system ...

a.Undersized exhaust ducting.

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