Diagnostics & Troubleshooting; Diagnostics-Models Acq058Mm & Acq062Mm - Whirlpool ACM052MM Service Manual

DIAGNOSTICS & TROUBLESHOOTING
DIAGNOSTICS—MODELS ACQ058MM & ACQ062MM
The Diagnostics Mode will test all of the LEDs,
the keypads, and the thermistor. To enter the
Diagnostics Mode, perform the following steps.
1. Press the following keypads within 7 sec-
onds:
ADJUST ∧
ADJUST ∨
TIMER
FAN SPEED
MODE
POWER
All of the LEDs will light indicating that all
of the keypads are functional.
2. Press the ADJUST ∧ keypad. All of the
LEDs will turn off, and the room tempera-
ture will be displayed.
FF indicates an open thermistor, or a tem-
perature of over 140°F.
00 indicates a shorted thermistor, or a tem-
perature of below 32°F.
NOTE: To Advance To The Next Step, Press The ADJUST ∧ Keypad.
Step Number Component Tested
1
2 Thermistor
3 Compressor
Fan Motor
4
TURBO Speed
Fan Motor
5
HIGH Speed
Fan Motor
6
LOW Speed
7
LEDs All LEDs will be lit.
All LEDs will turn off and the display will indicate the thermistor
temperature reading. Warming the thermistor will change the reading. An
open thermistor will read FF indicating a temperature above 140˚F. A
shorted thermistor will read 00 indicating a temperature below 32˚F.
The COOL LED will light and the compressor will operate for 20 seconds,
or until advanced to the next step. The display will read 88 until the end
of the Diagnostics Mode.
The TURBO LED will light and the fan will operate on Turbo speed.
The HIGH LED will light and the fan will operate on high speed.
The LOW LED will light and the fan will operate on low speed.
Press the ADJUST ∧ keypad and exit the Diagnostics Mode.
Exit
3. Press the ADJUST ∧ keypad. The COOL
LED will light, and the compressor will op-
erate for 20 seconds, or until advanced to
the next step.
88 will show on the display until the end of
the Diagnostics Mode.
4. Press the ADJUST ∧ keypad. The TURBO
LED will light, and the fan will operate on
Turbo speed.
5. Press the ADJUST ∧ keypad. The HIGH
LED will light, and the fan will operate at
high speed.
6. Press the ADJUST ∧ keypad. The LOW
LED will light, and the fan will operate at
low speed.
7. Press the ADJUST ∧ keypad and exit the
Diagnostics Mode.
Description
5-1