Sinclair SCV-750EB Service Manual page 133

5.29 FP Troubleshooting
Digital display output
Description
FP indicates pump in a combination system dial to different status. When the FP displayed, a manual system restart is

required before the system can resume operation.
All units stop running.

 Error code is only displayed on main PCB and user interface.
Possible causes
For SCV-750EB and SCV-1400EB, The S3_1 of slave units is different with the master unit.

For SCV-900EB and SCV-1800EB, the S12_2 of slave units is different with the master unit.
Main PCB damaged.

Procedure
For SCV-750EB and SCV-1400EB
The S3_1 of slave units is different with the
Replace outdoor main PCB
Notes:
1. Dial switch S3_1 on the main PCB
Switch
S3-1
For SCV-900EB and SCV-1800EB
The S12_2 of slave units is different with
Replace outdoor main PCB
FP
master unit 1
No
Description
Water pump
FP
1
the master unit
No
Yes
Adjust the switch of S3_1
ON
Multiple pumps
control
Yes
Adjust the switch of S12_2
Default factory
OFF
setting
Single pump
OFF
control
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