Errors

• - select type -
• FS-120LP
• FS-120NG
• FS-80LP
• FS-80NG

• - select code -
• A01
• A02
• A03
• A04
• A05
• A06
• A16
• A23
• A24
• A26
• A41
• A42
• A44
• A61
• A62
• A63
• A65
• F07
• F10
• F11
• F12
• F13
• F14
• F15
• F20
• F21
• F34
• F35
• F37
• F39
• F40
• F43
• F47
• F52
• F64
• F66
• FAULT 07 =
• FAULT 10 =
• FAULT 11 =
• FAULT 12 =
• FAULT 13 =
• FAULT 14 =
• FAULT 15 =
• FAULT 20 =
• FAULT 21 =
• FAULT 34 =
• FAULT 35 =
• FAULT 37 =
• FAULT 39 =
• FAULT 40 =
• FAULT 43 =
• FAULT 47 =
• FAULT 50 =
• FAULT 51 =
• FAULT 52 =
• FAULT 53 =
• FAULT 64 =
• FAULT 66 =

Boiler type FS-120LP

Error code FAULT 51 =

Cause:

Low water error

Solution:

Low water cutoff sensor open. This error can occur only when the Variable input switch functionality parameter is set to 3. This is only an indication, the heat request is not switched off.