[B] Service Diagnosis - Hoshizaki DIM-40DE-HC Service Manual

[b] SERVICE DIAGNOSIS

Error Check
Water valve
Refrigeration circuit
Compressor
E1
Compressor relay
Condenser
Fan motor
Hot gas valve
Cube control thermistor Disconnected
Hot gas valve
E2
Controller board
Actuator motor
E3
Controller board
Actuator motor
E4
Controller board
Hot gas valve
E5
Controller board
Condenser thermistor
E9
Controller board
EA Controller board
Cube control thermistor Open or short circuit
EC
Controller board
Ed Water regulator
Possible Cause
Closing failure
Gas leak
Clogged capillary
Clogged expansion valve
Defective
Starting failure
Coil circuit open
Clogged
Locked
Low RPM
Broken fan
Closing failure
Opening failure
Defective
Defective
Relay contact failure
Defective
Defective
Relay contact failure
Defective
Closing failure
Relay contact failure
Open or short circuit
Connector disconnected
Defective
Connector disconnected
Clogged with foreign matter
Corroded spring
31
Remedy
Clean or replace
Repair
Replace heat exchanger
Replace
Replace
Check supply voltage or replace
electrical components
Replace
Clean
Replace
Replace
Replace fan
Replace
Reconnect
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Reconnect
Replace
Replace
Reconnect
Unclog
Replace