ESIE11-02 Troubleshooting
Part 3 – Troubleshooting 3–25
33
4
5
1
An overview of the malfunction indications and safeties is given in "Malfunction Indications and
Safeties Overview" on page 3–7.
Flow switch or
pump contact
■ Damaged flow switch
■ Incorrect pump operation
■ Incorrect field wiring
■ Defective control devices
(pump relay)
■ Flow switch
■ Pump operation
■ Field wiring
■ Control devices
Discharge ther-
mal protector
■ Refrigerant shortage
■ Operation out of range
■ Refrigerant leak
■ Operation condition
Fan thermal
protector
■ Blocked fan
■ Blocked condenser
■ State of the fans (free rotation)
■ State of the condenser
Reverse phase
protection
■ Incorrect phase direction
■ One phase missing
■ Swap two phases
■ Connect the loose phase
Malfunction Possible causes Items to be checked
To Next Page
Loading...