Prestige 75 - Page 42

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ENGLISHFRANCAISNEDERLANDSESpAñoLITALIANoDEuTSCH
664Y3300
mCBA pARAmETERS FoR THE SpECIALIST
Codes Description of the fault Remedying the fault
Short circuit NTC 3
- Check the connection of the NTC 3 sensor
- Check the wiring of the NTC 3 sensor
If the problem persists, replace the NTC 3 sensor
NTC 1 connection open
- Check the connection of the NTC 1 sensor
- Check the wiring of the NTC 1 sensor
If the problem persists, replace the NTC 1 sensor
NTC 2 connection open
- Check the connection of the NTC 2 sensor
- Check the wiring of the NTC 2 sensor
If the problem persists, replace the NTC 2 sensor
NTC 3 connection open
- Check the connection of the NTC 3 sensor
- Check the wiring of the NTC 3 sensor
If the problem persists, replace the NTC 3 sensor
Internal error
If the problem persists after two “RESET” attempts,
replace the MCBA
Flue gas temperature too high (NTC 5)
- Check the connection of the NTC 5 sensor
- Check the wiring of the NTC 5 sensor
If the problem persists, replace the NTC 5 sensor
Error during reading of the parameters
Press RESET
If the error persists, replace the MCBA
Fan power supply problems
- Check the supply voltage of the MCBA.
If you detect no problems with it, replace the fan