GE HPS15BTHR Technical Service Manual page 47

Machine Compartment Wire Harness
The machine compartment wire harness assembly
comes with the power cord and wiring to the
following machine compartment components:
• Compressor combo device (black/white)
• Condenser fan motor (black/white)
• Water valve (white)
• Case ground (gray)
• Unit neutral (orange)
The harness supplies power to the refrigerator
through a Molex connector, located at the right rear
section of the machine compartment.
Replacing Machine Compartment Wire Harness
1. Disconnect power to the refrigerator.
2. Remove the four 1/4 in. hex head screws from
the rear access cover.
3. Disconnect the wiring from the machine
compartment (See Machine Compartment
section in this Guide).
4. Disconnect the ground wires from the case.
5. Remove the condenser fan assembly (see
Condenser Fan Removal section in this Guide).
6. Remove the combo device.
7. Remove the water valve.
8. Use needle nose pliers or side cutters to remove
the connectors.
The new machine compartment wire harness will
come with canoe fasteners attached to harness.
IMPORTANT: When reinstalling the wire harness
back to the refrigerator, make sure that all of the
ground wires, protective sleeve, and electrical
components are securely fastened.
Checking Combo Device and Compressor
Carefully check the orange and black wires for 120
VAC at the compressor combo device. If power is
present at black and orange at the combo device
perform the following checks:
• Checking Overload
• Checking PTC Relay
• Checking Run Capacitor
• Checking Compressor Electrically
Checking Overload
1. Disconnect power to the refrigerator.
2. Remove the combo device from the compressor.
3. Place the multi-meter on ohm's scale.
4. Check overload for approximately 1Ω (NOTE: If
overload is warm, allow a few minutes for it to
cool down before checking).
5. If overload is open, replace the combo device.
IMPORTANT: The overload is a safety device. If the
overload is open, look for these possible reasons:
• Dirty condenser
• Condenser fan motor not running
• Low voltage, less than 105 VAC
• Refrigerator on an unapproved extension cord
• Shorted, stalled or grounded compressor
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