Here is the Diagnostic tests for your unit. You will be able to turn on the fans and compressor from these tests. If you compressor is warm, it must be getting some kind of voltage to it. Also, your tech sheet that has this information on it is usually located under the toe panel. If you take the toe panel off in the front of the unit it may be tucked inside it or in a plastic bag on the cabinet under it.

Service Test Mode:
The service test functions are performed using the refrigerator display and keypad. Enter the Service Test Mode
by performing the following sequence of events:
1. Hold the refrigerator door light switch closed.
2. Press the Refrigerator Temperature Up keypad 3 times consecutively.
Note: The 3 Keystrokes must be done consecutively and within 10 seconds.
3. Release the refrigerator door light switch.
4. The control will display SE to confirm entry into the service mode.
Freezer Refrigerator
S/E
5. Entry to the Service Menu is confirmed by pressing the Refrigerator Up key once more.
6. The control will display its software version for 3 seconds.
Freezer Refrigerator
2/5
7. Following the software revision display the freezer display will read the first test number in the
diagnostic tree. The refrigerator display will be blank.
Freezer Refrigerator
1/
Note: All control functions will be turned off (Compressor, Defrost, Evaporator Fan, the damper will
remain in its current position).
8. You are now in the SERVICES TEST operational mode and may use the diagnostic tests.
The Service Test Mode can be exited at any time by closing the Refrigerator Door(s). Service Specifications

Service Test 1 – Defrost Thermostat & Defrost Circuit Test
When selected this test will display the state of the defrost thermostat. In order to perform this test the defrost heater will
be energized. The test is activated and deactivated using the Refrigerator Up key. Once activated, this test must be
deactivated to move to another test number. The Freezer Up / Down keys allow selection of the test to be
performed.
This test also allows observation and measurement of proper defrost function. You can observe defrost heat and voltages
while the test is activated.
Freezer Refrigerator
1/O
DEFROST THERMOSTAT OPEN

Freezer Refrigerator
1/ S
DEFROST THERMOSTAT SHORTED (CLOSED)

Service Test 2 – Compressor/Condenser Fan Test
When selected and activated this test will operate the Compressor/Condenser Fan circuit. You should evaluate proper
operation of the compressor and condenser fan. The Refrigerator Up key will toggle between “O” / “F” (ON & OFF)
the compressor drive circuit. The test must be “deactivated” or in the OFF position to move to another test selection.
Freezer Refrigerator
2/O

Freezer Refrigerator
2/F
OBSERVE COMPRESSOR & CONDENSER FAN FUNCTION

Service Test 3 – Evaporator/Freezer Fan Test
When selected and activated this test will operate the freezer fan. The Refrigerator Up key will toggle between “O” /
“F” (ON & OFF) the fan drive circuit. You will have to inspect the fan for proper function. The test must be “deactivated” or
in the OFF position to move to another test selection.
Freezer Refrigerator
3/O

Freezer Refrigerator
3/F
OBSERVE FAN OPERATION Service Specifications

Service Test 4 – Fresh Food Thermistor Test
When selected and activated this test will display Pass, Open, Short result for a test on the Fresh Food Thermistor
circuit as shown below. The test is activated and deactivated via the Refrigerator Up key, and must be
deactivated to move to another test selection.

Freezer Refrigerator
4/P
PASS RESULT

Freezer Refrigerator
4/O
OPEN RESULT

Freezer Refrigerator
4/S
SHORT RESULT

Service Test 5 – Freezer Thermistor Test
When selected this test will display Pass, Open, Short result for a test on the Freezer Thermistor circuit as
shown below. The test is activated and deactivated via the Refrigerator Up key, and must be deactivated
to move to another test selection.

Freezer Refrigerator
5/P
PASS RESULT

Freezer Refrigerator
5/O
OPEN RESULT

Freezer Refrigerator
5/S
SHORT RESULT

Service Test 6 – Open Damper Test
When selected this test will indicate the current position “O” / “C” (OPEN / CLOSED) of the refrigerator damper. The
Refrigerator Up key will toggle the damper open and closed. You must allow 1 minute for each attempt to change
the damper position. You should observe proper damper function.

Freezer Refrigerator
6/O

Freezer Refrigerator
6/C
OBSERVE DAMPER FUNCTION

Ok so the compressor is hot but not working no blowers or fans either. Is there a diagnostics I can run off the control board?

Hi. If the unit came on and the fans are running after programming the new board, it sounds like you programmed it correctly. I would check to see if the control board is sending proper voltage (120 v) to the compressor. If you have proper voltage to the compressor and its not running it could be the start components of the compressor or the compressor it self that is faulty. If you need further assistance please let me know.

Melissa, below is a link for your belt information and clutch. It gives you a complete breakdown by your model. Matt Ace Service technician

Hi Brian – You were 100% correct in your assumption. I had not thought to check the outside duct. Since i have not lived at this new residence for too long… the outside duct must have been mostly clogged for a while. I cleaned the outside duct and had previously cleaned the inside of the dryer… the duct exhaust… had been getting clogged in 2 different locations for a while. The lack of airflow through the dryer was causing a low heat condition to occur; and it must of been perhaps short cycling. The nice thing is that no parts were required at this time and no further diagnostics are needed. It was just a matter to reassemble the unit and ensuring that the wiring was reconnected.

Thanks for your help !!!

Fred / Lubbock, TX

What I really would like is a trouble shooting chart/flow chart to trouble shooting all problems. I’m a apartment maintenance man with about 70 of these stackable w/d and never worked on a w/d with a control board ( im old school) any advise would help, thanks