PROBLEM CHECK POSSIBLE CAUSE REMEDY
c. Thermostat 1. Mounting location 1. Relocate thermo-bulb
(compressor incorrect. Model to proper location
control) VUCW should be
thermo-bulb on the right wing
mounting of the evaporator
or routing. plate. All other
models mount at
rear top center of
the evaporator.
2. Thermostat sensing 2. Reroute sensing tube clear
tube (capillary tube) of compressor dome area.
resting on or above
compressor dome
in mechanical
compartment causing
false sensing.
3. Thermostat 3. Securely tighten
thermo-bulb thermo-bulb mounting
mounting bracket bracket.
not secure, causing
false sensing.
4. Insufficient 4. Adjust thermo-bulb
thermo-bulb contact contact area to achieve
area. on evaporator sufficient contact.
U-shaped loop with A U-shaped loop with
3-inch long legs 3-inch long legs is required.
required bracket The mounting bracket
Bracket should be should be located at the
located at midpoint mid point of each 3-inch
of each 3-inch leg. leg. Both legs secured
Both legs secured under bracket.
under bracket
d. Compressor 1. Cut-out temperature 1. Replace the thermostat
control too low due to internal
thermostat failure in the
cut-out thermostat
temperature.
F90571
7
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