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Heating  Heating

Brand

Wiliamson Wiliamson List all brands

Type:

FS-120NGFS-120NG
List all types

Error code:

F43
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Error code: F43

Cause of error code F43

Exchanger protection activation.


1. No system H2O circulation
2. Air in the system

Solution for error code F43

1. Check the circulating pump
2. Vent the system


 


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