![background image](http://html2.mh-extra.com/html/sanda/cw-5000-series/cw-5000-series_service-and-repair-handbook_3071212004.webp)
2
2.2
)
If the alarm keep going (red light flash), please reconnect two red wires back to flow switch to
conduct next testing
3
)
Cut off four wires on the Hall flow switch, connect the red wire with other red one, the black wire
connect with the yellow one. And then turn on the chiller to observe if the alarm continues.
3.1
)
If the alarm stop (green light flash), it can be judged as the flow switch failure.
Solution:
Replace the Hall flow switch
3.2
)
If the alarm continues, please reconnect these four wires back to the flow switch to conduct next
testing.
4
)
To test input voltage of reply coil with test tools.
Note: Standard Voltage of relay coil of baffle flow switch is AC220V, relay coil of Hall flow switch
is DC24V.
4.1
)
If input voltage of relay coil (as picture) is not standard voltage, it can be judged as wires break
which flow switch connect to relay.
Solution:
Check if wires of relay are loose or broken.