Electrolux 5995502399, Service Manual, Page: 34 / 173

Electronic Control
3-12
Compressor
not running
Controls set
correctly
.
Replace main
control board
Is there 120
VAC to the
inverter board
Check wiring
and inverter
board
connections
Check for
10 Ohms between
each terminal
on compressor
Replace
compressor
and inverter
board
Replace
inverter board
compressor and
inverter board
Check wiring
connections
between
connections
Repair
Yes Yes Yes Yes Yes
No No No No
the proper signal
form the lower
control board
Are you receiving
3. If the voltage checks good, remove the inverter
from the compressor by removing one screw at the
bottom of the inverter that goes through the bracket
welded to the compressor. (See Figure 3-16) Pull
the inverter away from compressor. Use a small
flat-bladed screwdriver to remove the plug from the
compressor terminals. Using an ohmmeter, check
the resistance between the compressor terminals
(See testing the compressor). If the compressor
checks good, replace the inverter.
Testing the Compressor
The compressor has a 3 phase, 4 pole brushless DC
motor. To test the compressor using your Ohmmeter,
check the resistance between the terminals. Check
should read 10 ohm +/- 10 % when using Figure 3-17 to
test.
1
2 3
Test
1 to 2
Test
2 to 3
Test
3 to 1
Figure 3-17
115 V
Inverter
Mounting Screw
Motor
3 phase
4 poles
Brushless
Lubrication
Modified
System
For Lower
Speeds
Electronic
Control
Replaces
Starting Device
Power input
and OP
Figure 3-18
Figure 3-16
Figure 3-19