Compressor - Bunn Silver Series Service & Repair Manual

SERVICE (CONT.)
LG Compressor (JDF-2S,4S,4D)
FIG. 7 COMPRESSOR
Location:
The compressor is located at the top of the dispenser
frame.
1 2 3
GRN Wire
FIG. 8 COMPRESSOR THERMAL
OVERLOAD PROTECTOR LOCATION
1. Compressor Terminal Cover
2. Compressor Relay
3. Thermal Overload Protector
Test Procedures:
JDF-4S shown
Compressor Relay: Refer to FIG. 8
1. Disconnect the dispenser from the power source.
2. Remove compressor terminal cover retainer (1).
3. Connect a voltmeter across the white wire and the
The indication must be:
5. Disconnect the dispenser from the power source.
If voltage is present as described, proceed to the fol-
lowing test procedures.
If voltage is not present as described, refer to the
Contactor and check the contactor.
6. Disconnect the white wire from the compressor
7. Remove relay from the compressor.
8. Check for continuity across the terminal and the
P1684.40
If continuity is present as described, the compressor
start relay is operating properly.
If continuity is not present as described, replace relay.

Compressor:

1. Remove relay and yhermal overload protector.
2. Check for continuity across the bottom pin on the
If continuity is present as described, the electrical part
of the compressor is operating properly.
If continuity is not present as described, replace the
compressor.
Thermal Overload Protector:
1. Check for continuity across the terminals on the
If continuity is present as described, the thermal over-
P4298.20
load protector is operating properly.
If continuity is not present as described, replace the
thermal overload protector.
17
blue/black wire. Connect the dispenser to the power
source.
(a) 120 volts ac for two wire 120 volt models or
(b) 230 volts ac for two wire 230 volt models.
relay.
pin socket on the rear of the relay.
compressor and the left top pin on the compressor.
thermal overload protector (3).
49179 110613