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Bad Evaporator Fan Resistor
J2 Connector
GEA01140
Evaporator Fan Resistor
Condenser Fan Resistor
Evaporator and Condenser Fan Resistors
Evaporator Fan Adjustment
Evaporator Fan
The position of the fan blade in relation to the
shroud is critical. Refer to evaporator fan
adjustment graphic for specifications.
If the fan shorts, it may damage the main control
board. If the resistor on the main control board is
burnt, you must replace the fan and the board (see
photo).
The evaporator fan utilizes a permanent magnet,
4-pole, DC motor that can operate at three
different speeds: high, medium, and low (medium
and low are the same speed, controlled by the
main control board). The speed of the fan is
controlled by the voltage output from the main
control board. Voltage output from the control
board to the fan is 12.6 VDC; however, in order to
regulate the speed of the fan, the control board
uses Pulse Width Modulation (PWM) during low-
5/16 +/- .03
GEA01196
Pin 1 J8
Compressor
Pin 1 J9
Defrost Heater
Pin 1 J11
Line
Evaporator Fan Tach.
J2 Pin 1
Personality Input 5
Pin 2
Fan Common
Pin 3
Evaporator Fan
Pin 4
Condenser Fan
Pin 5
FF Fan
Pin 6
QuickChill Damper1 +
J5 Pin 1
QuickChill Damper1 -
Pin 2
QuickChill Damper2 +
Pin 3
QuickChill Damper2 -
Pin 4
+5V
Pin 5
QuickChill Thermistor
Pin 6
QuickChill Fan
Pin 7
Fan +12V
Pin 8
FF1 Thermistor
J1 Pin 1
FF2 Thermistor
Pin 2
FZ Thermistor
Pin 3
Evaporator Thermistor
Pin 4
+5V
Pin 5
Personality Input 1
Pin 6
Personality Input 2
Pin 7
Personality Input 3
Pin 8
Personality Input 4
Pin 9
Damper - Blue
J3 Pin 1
Damper - White
Pin 2
Damper - Red
Pin 3
Damper - Yellow
Pin 4
FF Encoder Select
Pin 5
Comm. Tx/Rx
J4 Pin 1
Comm. +12V
Pin 2
Comm. Common
Pin 3
Discrete Disp. Input 1
Pin 4
Discrete Disp. Input 2
Pin 5
FZ Encoder Select
Pin 6
Encoder Signal
Pin 7
Encoder Signal
Pin 8
Encoder Signal
Pin 9
Encoder Signal
Pin 10
Pin 1 J12
Monogram Drain Pan Heater
Pin 9 J7
Neutral
Pin 8
NIC
Pin 7
FZ Door Switch
Pin 6
FF Door Switch
Pin 5
QuickChill Heater
Pin 4
Auger Motor Interlock
Pin 3
Water Valve
Pin 2
Crusher Solenoid
Pin 1
Auger Motor
Pin 1
QuickChill Htr.
Pin 2
QuickChill Htr.
Low Voltage DC
120 VAC
Airflow
5/16
+/- 0.03