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Test Operation, Troubleshooting and Maintenance
(5) Water ow switch protection
Water flow switch protection
Does the water pump
not start?
Yes
Is the the flow switch not
installed or installed
improperly?
Is the flow switch faulty?
Does the controller
alarm incorrectly?
Install the flow switch or
check the installation.
Maintain the flow switch.
If this occurs frequently, the
main board should be
replaced.
.
Contact the supplier.
No
No
No
Yes
Yes
Yes
Yes
Start the water pump.
No
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