American Dryer Corp. Phase 5 Microprocessor AD-170 - Manual (Page 43)

39
9. Thermal overload for drive motor is tripping.
A. Either an exceptionally low or high voltage supply
B. Motor bearing failure
C. Bearing failure in drive system
D. Motor vents are blocked with lint
E. Failed motor
F. Insufficient make-up air
10. Overload for impellor (fan) motor is tripping.
A. Either an exceptionally low or high voltage supply
B. Motor bearing failure
C. Motor vents are blocked with lint
D. Failed motor
E. Failed overload
F. Out of balance impellor (fan)
G. Insufficient make-up air
11. Dryer is cycling on burner hi-limit safety thermostat.
A. Insufficient exhaust duct work...size or restriction in exhaust system
B. Insufficient make-up air
C. Lint screen needs cleaning
D. Damaged impellor (fan)