16021730 Rev. 0
42
Evaporator temperature should drop as compressor pulls down. During test approx. 2
VAC can be measured at JP10-1,2. If pump is still not running observe line voltage at
compressor inverter input CN 02-1,5 and 230 VAC output at compressor inverter
CN 02-1,6. Pump should draw approx. 2 amps AC on line input to inverter.
(Compressor must be off for 5 min. prior to initial test.)
PI - START & STOP TEST
Display will show current evaporator temperature.
If defrost terminator is closed, heaters should energize and evaporator temperature will
rise. Approx. 3 amps AC current can be measured on heater lead at main control JP8-1.
During test line voltage can be measured at JP8-1,1. Heater resistance can be measured
by measuring JP8-1,14 with JP8 removed. Approx. 30 ohms with terminator closed or
240k with terminator open.
PI - START & STOP TEST
Display will show current evaporator thermistor
temperature on right side of display.
During test line voltage can be measured at JP8-1,JP13-1.
PI - START & STOP TEST
DISPLAY
ON - FAN SHOULD BE OPERATING
During test line voltage can be measured at JP8-1, JP12-2.
PI - START & STOP TEST
DISPLAY
ON - FRESH FOOD LIGHTS SHOULD BE OPERATING
During test line voltage can be measured at JP8-1, JP12-3.
PI - START & STOP TEST
DISPLAY
ON - FREEZER LIGHTS SHOULD BE OPERATING
During test line voltage can be measured at JP8-1, 9.
PI - START & STOP TEST
DISPLAY
ON - FOUNTAIN LAMP SHOULD BE OPERATING
Evaporator temperature should drop as compressor pulls down. During test approx. 2
VAC can be measured at JP10-1,2. If pump is still not running observe line voltage at
compressor inverter input CN 02-1,5 and 230 VAC output at compressor inverter
CN 02-1,6. Pump should draw approx. 2 amps AC on line input to inverter.
(Compressor must be off for 5 min. prior to initial test.)
PI - START & STOP TEST
Display will show current evaporator temperature
on the last 2 digits of main display.
SERVICE TEST
12
CONDENSER
FAN
SERVICE TEST
13
FRESH FOOD
LIGHTS
SERVICE TEST
11
DEFROST HEATERS
SERVICE TEST
14
FREEZER
LIGHTS
SERVICE TEST
15
FOUNTAIN
LAMP
SERVICE TEST
16
COMPRESSOR
MAX SPEED
SERVICE TEST
17
COMPRESSOR
MIN SPEED
IN
OUT