E.C.A. Confeo Premix CP 24 HST Installation And User's Operating Instructions page 51

High-efficiency condensing boilers (compatible with externa ldhw tank)
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Table 8
Fault/Error and error code
Failure BCC during
installation
39
Frost Protection
4
4
BCC activation
50
BCC copy
52
System error
99
Cause
- If there is a failure during
the installation of the BCC.
- CH NTC's temperature is
below 0°C.
- BCC activation procedure is
not completed.
- BCC activation procedure is
not completed.
- Defective electronic board.
Solution
- Consult qualified service.
If the temperature at the boiler
sensor (Flow temperature) falls
below 1°C, all actuators will be
stopped.
- Consult qualified service.
- Consult qualified service.
- Consult qualified service.
51

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