Nibe F1345 - Page 65

May be due
to/check
Resets automatic-
ally when
Heat pump action.CauseText in displayNo.
• Open-circuit or
short-circuit on
sensor input.
• Defective sensor
Calculation of cool-
ing DM performed
with EQ1-BT25 is
set to 0.
The input for the
sensor receives un-
reasonably high or
low value for longer
than 2 seconds.
Flt: EQ1-BT25323
• Undersized heat-
ing system.
• Incorrectly adjus-
ted heating curve.
• Incorrect flow.
• Incorrectly connec-
ted additional
heat.
Resets automatic-
ally when the tem-
perature is below
70 °C.
Heating is blocked.The maximum tem-
perature from the
heat pump is ex-
ceeded.
hi. temp. out333
• Undersized heat-
ing system.
• Incorrectly adjus-
ted heating curve.
• Incorrect flow.
• Incorrectly connec-
ted additional
heat.
Resets automatic-
ally when the tem-
perature is below
60 °C.
Heating is blocked.The maximum tem-
perature through
the heat pump is
exceeded. BT3 is
higher than 65 °C in
heating operation
high in temp.334
• Open-circuit or
short-circuit on
sensor input.
• Defective sensor
Resets automatic-
ally when the
sensor has worked
continuously for 60
seconds.
The input for the
sensor receives an
unreasonably high
or low value for
longer than 2
seconds when the
sensor is activated.
Sensor fault on
BT50 room
sensor.
350
Manual.Change from auto
to manual brine
pump speed.
Delta BT10-
BT11>|2K| after cal-
ibration.
Failed sensor cal-
ibration
351
Manual.Change from auto
to manual pump
speed.
Delta BT3-
BT12>|2K| after cal-
ibration.
Failed sensor cal-
ibration
353
Manual.None.Alarm from the gas
boiler (GBM).
Int temp OPT er-
ror
359
• Open-circuit or
short-circuit on
sensor input.
• Defective sensor
Resets automatic-
ally when the
sensor has worked
continuously for 60
seconds.
The input for the
sensor receives un-
reasonably high or
low value for longer
than 2 seconds.
Sensor fault:
EPxx-BT3 return
line sensor
361-
367
• Open-circuit or
short-circuit on
sensor input.
• Defective sensor
Resets automatic-
ally when the
sensor has worked
continuously for 60
seconds.
None.The input for the
sensor receives un-
reasonably high or
low value for longer
than 2 seconds.
Sensor fault:
EP12-BT57/BT58
369-
370
65Chapter 5 | Disturbances in comfortNIBE F1345