American Dryer Corp. Phase 5 Microprocessor AD-170 - Manual (Page 6)

SECTION V
Servicing ........................................................................................................................................................... 13
A. Computer Controls ....................................................................................................................................... 14
B. Ignition Controls .......................................................................................................................................... 16
C. Thermostats .................................................................................................................................................. 21
D. Sail Switch Assembly
(for Gas Models ONLY) ............................................................................................................................. 22
E. Front Panel and Main Door Assemblies ....................................................................................................... 23
F. Pulleys .......................................................................................................................................................... 26
G. Basket Assembly........................................................................................................................................... 28
H. Bearings
(refer to illustrations in Section F "Pulleys") .............................................................................................. 30
I. V-Belts
(refer to illustrations in Section F "Pulleys") .............................................................................................. 32
J. Motors .......................................................................................................................................................... 33
K. Impellor ........................................................................................................................................................ 35
L. Lint Drawer Assembly ................................................................................................................................. 35
SECTION VI
Troubleshooting ............................................................................................................................................... 36
1. No display on computer ............................................................................................................................. 36
2. Computer will not accept key pad entries .................................................................................................. 36
3. Dryer will not start, but computer display indicators are on ...................................................................... 37
4. Drive motor runs, burner is on, but basket will not turn ............................................................................ 37
5. Drive motor and blower start, computer display heat indicator is on, but there is no heat ........................ 37
6. Dryer operates, probe sparks, but gas does not flow .................................................................................. 38
7. Dryer operates, probe sparks but there is no ignition even though gas is evident ..................................... 38
8. Dryer operates but is taking too long to dry ............................................................................................... 38
9. Thermal overload for drive motor is tripping ............................................................................................. 39
10. Overload for impellor (fan) motor is tripping ............................................................................................. 39
11. Dryer is cycling on burner hi-limit safety thermostat ................................................................................. 39
12. Display reads "dSFL" (Dryer Sensor Circuit Failure)................................................................................. 40
13. Dryer does not start...display reads "door" .................................................................................................. 40
14. There is excessive vibration coming from the basket (tumbler) ................................................................. 40
SECTION VII
Electrical Troubleshooting .............................................................................................................................. 41
A. Phase 5 OPL System Diagnostics................................................................................................................. 42
B. LED Display Indicators ................................................................................................................................ 43
C. LED Display/Codes ...................................................................................................................................... 46
D. Computer Logic and Wiring Diagram .......................................................................................................... 49
SECTION VIII
Technical Information ..................................................................................................................................... 56
A. Motor Plate (High and Low Voltage) ........................................................................................................... 56
B. Data Label ..................................................................................................................................................... 57
C. Using a Manometer....................................................................................................................................... 58
D. AD-170 Tool List .......................................................................................................................................... 59