American Dryer Corp. AD-78 II Clothes Dryer User Manual


 
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5. Dirty steam coil...
a. Fins are clogged with lint.
6. Steam damper system
is not functioning properly...
a. Steam damper is sticking closed.
b. Leak in the pneumatic (air) system.
7. Extractors (washers)
are not functioning properly.
8. Exceptionally cold/humid or low barometric pressure atmosphere.
9. Cycle temperature thermostats are covered with lint.
NOTE: Lint accumulation on the sensor bracket can act as an insulator, which will affect the accuracy
of the Automatic Drying Cycle.
K. Main burners are burning with a yellow flame...
1. Poor air/gas mixture (too much gas or not enough air) at the burner...
a. Not enough make-up air.
b. Restriction in the exhaust ductwork.
c. Gas pressure is too high.
d. Blower (impellor/fan) is rotating in the wrong direction (for 3-phase [3ø] models only).
e. Burner orifice size (drill measurement size [D.M.S.]) too large for application (i.e., high elevation).
L. Condensation on main door glass...
1. Too long, undersized, or improperly installed ductwork.
2. Back draft damper is sticking in the partially closed position.
M. Dryer is making scraping noise at basket (tumbler) area...
1. Check for obstruction caught in basket (tumbler)/wrapper area.
2. Basket (tumbler) is out of proper alignment...
a. Check both the vertical alignment and lateral alignment.
b. Check for gap between the front panel and basket (tumbler)...bearing setscrews may have come loose,
and basket (tumbler) walked forward or backward.