GE Profile PSB42LGRBV, Technical Service Manual

Page: 34 / 72

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Door Water Line Replacement
To remove the existing water line, remove
the screws from the water line retainer at the
dispenser, then pull the retainer off the tubing.
From the bottom of the door, disconnect the water
line and pull it down and out.
To install the new water line, soak the new line in
hot water (to make it pliable) and insert it into the
door at the dispenser location. Feed the water
line into the door, until it emerges through the
bottom hinge as shown in the photo below. (The
stainless steel panel is shown pulled away from
the door for clarity).
Note: On custom panel models, it may be
necessary to remove the door handle and slide
the panel to the right to feed the water line past
the bend.
Main Switch
The main switch is mounted to a bracket at the
front of the machine compartment. The main
switch opens both the line voltage and neutral
side to the refrigerator.
Main Switch
Note: If the refrigerator is dead (no lights or
component operation), check for power to CN1.
Ensure the main switch is operating correctly.
Check for loose connectors at the terminal block.
CN01
When the refrigerator is plugged in, the line
voltage and neutral is supplied at CN01, between
pin #1 and pin #2.
Dispenser Heater
The dispenser cavity heater is non serviceable. If
defective, the freezer door must be replaced.
The amount of time the heater is energized is
based on ambient temperature (provided by
the ambient thermistor). Below 46°F (8°C), the
heater is constantly on. Between 46°F (8°C) and
80°F (27°C), the heater cycles on and off with
the compressor. Between 80°F (27°C) and 98°F
(37°C), the heater cycles on for 5 minutes and off
for 5 minutes, while the compressor is running.
When the compressor is off, the heater cycles on
for 5 minutes and off for 25 minutes. Above 98°F
(37°C), the heater cycles on and off, with the
compressor.
Check for 120 VAC at CN08 on the terminal
block, between pin #4 and pin #5, when the
heater should be energized or when the
refrigerator is in test mode
0 9 (see
Service
Diagnostics
). Heater resistance is approximately
1.9K Ω.
Caution: Do NOT connect or disconnect CN1
connector with power applied. Always turn off
power at the main switch to avoid arcing at
connector terminals.