May be due toActionCauseAlarm text on the
display
Alarm no.
Uncertain sensor accuracyChange from
auto to manual
pump speed
Delta BT3-BT2
greater than
|2K| after calibra-
tion
Slave EB101: Delta
BT3-BT63>|2K| during
calibration. Resets to
manual circulation
pump speed
355
Status AUX-inNoneExternal alarmalarm from external
input
995
Status AUX-inNoneSignal via AUX
input
Additional heat extern-
al blocked
996
Status AUX-inNoneThe compressor
is externally
blocked
The compressor is ex-
ternally blocked
997
The display/product has restartedThe dis-
play/product
has restarted
Display has re-
started
Starts998
NIBE™ VVM 310Chapter 6 | Troubleshooting22
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