CIAC IMVF Series - Troubleshooting Guide

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9. Troubleshooting
If sensor
resistor/characteristic is
proper and its deviation
Is within ±3℃
Replace sensor
No
If sensor
terminal is
fixed well
Yes
Replace
connecting
sensor
Yes
Replace valve
box PCB
No
[1~3] Sensor fault
Power off and check if the
EEPROM is fixed well
Replace
connection kit
PCB
Yes
Reconnet
No
[5] Fault of connection kit EEPROM