Service manual

47
Installation and Service Manual
TROUBLESHOOTING
PROBLEM ANALYSIS GUIDE - 3 RELAY BOARD
Problem
Cuber remains in harvest cycle
Cause
Evaporator thermistor open
(starts in harvest)
A) Loose connection at circuit board
B) Check thermistor
Proximity switch light "out"
A) Loose wire connection at cir-
cuit board
B) Proximity switch bad
Proximity switch light "on"
A) Circuit board failure
B) Ice bridge too then
C) Water curtain stuck, curtain
check, adjust as required fro-
zen to ice on evaporator. Cur-
tain hung on water pan, prox-
imity switch, water hose
Corrective Action
Tighten
Replace - see check out
Tighten - reattach wire
Replace - see check out
Replace
Adjust bridge per bridge adjust-
ment instructions
Check, adjust as required