STEAM MODELS
1.No (external) compressed air (80 PSI [552 kPa) required) to steam damper solenoid.
2.Flow control valve is not adjusted correctly ...
a.Too much restriction.
3.Failed steam damper pneumatic (air) solenoid.
4.Damper stuck in "closed" position ...
a.Check for obstruction.
5.Leak in the pneumatic (air) system.
6.Failed air piston.
J. Dryer operates but is taking too long to dry...
1.Exhaust duct work run too long or is undersized...back pressure cannot exceed 0.3 inches water column (W.C.) - 0.74 millibars.
2.Restriction in exhaust ...
a.
b.Restriction in duct work ...
1)Check duct work from dryer all the way to the outdoors.
3.Insufficient
4.Impellor (blower/fan) "squirrel cage" is rotating in the wrong direction.
5.Lint drawer screen is dirty or is not being cleaned often enough.
6.Inadequate air flow...
a.Impellor (blower/fan) "squirrel cage" failure.
b.Loose impellor (blower/fan) "squirrel cage" drive
7.Gas Models
a.Low and/or inconsistent gas pressure;
Natural Gas pressure must be 3.5 inches of water column (8.7 millibars).
Liquid Propane (L.P.) pressure must be 10.5 inches of water column (26.1 millibars).
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