Manitowoc Multiplex 50GAX04 User Manual

Part Number 020002365 08/25/2015 49
Section 5 Troubleshooting
E7, E8, & E9 Flowchart
EI
E2 E3 E4 E5 E6 E7 E8 E9
NORMALLY CAUSED BY CARB
MOTOR A RUNNING > 7
MINUTES CONTINUOUSLY
NORMALLY CAUSED BY ICE
ON ICE BANK PROBE PIN #2
(MIDDLE PIN)
SAME AS E8 FOR CARB
B MOTOR/PUMP
NO
YES
NO
NO
YES
YES
VERIFY VISUALLY THAT ICE
IS OVER ICE BANK PROBE
PIN #2 (MIDDLE PIN)
FIRST CHECK FOR LEAK IN
CARB SYSTEM
YES
NO
YES
NO
PIN #2
COVERED IN
ICE
LEAK IN
SYSTEM
VERIFY ICE BANK PROBE
INSTALLED
CORRECTLYPLASTIC STEP ON
PROBE AWAY FROM EVAP
FIX LEAK
UN-PLUG CARB B
CONNECTOR FROM ERC (#1)
TO VERIFY CONDUCTIVITY
OK
THEN CHECK FOR PUMP
OUTPUT(32 OZ IN LESS
THAN 20 SEC)
“E7” ERROR
GOES AWAY
PUMP GOOD
UN-PLUG ICE BANK PROBE
CONNECTOR (#3) FROM ERC
BOARD
RESET ERROR (PUSH CARB A
AND/OR B BUTTON OFF, THEN
ON TO RESET
COMPRESSOR ON TOO
LONGGOTO
COMPRESSOR /
REFRIGERATION
TROUBLESHOOTING
“E7” ERROR
GOES AWAY
IF “E8” AND/OR “E9”
CONTINUE TO OCCUR
REPLACE ERC CONTROL
BOARD 020001985
REPLACE ERC
CONTROL BOARD IF
PROBLEM CONTINUES
020001985
REPLACE ICE BANK
PROBE 020002091
REPLACE PUMP

Manitowoc Multiplex 50GAX04 Specifications

General

Brand	Manitowoc
Model	Multiplex 50GAX04
Category	Chiller
Language	English