May be due toActionCauseAlarm text on the
display
Alarm no.
Temporary inverter fault. Switches
to alarm 203 after 60 minutes.
Inverter error type I213
Temporary inverter fault. Switches
to alarm 204 after 60 minutes or if
activated 3 times in less than 120
minutes.
Inverter error type II214
Temporary inverter fault. Switches
to alarm 205 if activated 2 times in
less than 60 minutes.
Inverter error type III215
See relevant manualBlocks the com-
pressor
EB 101 sends an
error message
to the control
Cold outdoor air EB
101
271
See relevant manualBlocks the com-
pressor
EB 101 sends an
error message
to the control
Hot outdoor air EB 101272
See relevant manualHW-start and
HW-stop for
economy and
normal have
been set to de-
fault
Adjustment of
the hot water -
settings due to
short run times
HW-start and HW-stop
have reset to default
273
Load monitor has prevented com-
pressor running at desired fre-
quency (F2040-12 additional heat:
and been below 85Hz) for at least
an hour (corresponding)
NoneLoad monitor
has caused the
compressor not
to run at the de-
sired frequency
The compressor's
phase has been over-
loaded
274
Load monitor has prevented com-
pressor running at desired fre-
quency (F2040-12 additional heat:
and been below 85Hz) for longer
than 5% of the total operating
time for the compressor. This first
detects the total number of operat-
ing hours by which the compressor
exceeds 1000h.
NoneLoad monitor
has caused the
compressor not
to run at the de-
sired frequency
The compressor's
phase has been over-
loaded for a long time
275
Temporary communication faultAccessory is
blocked
3 communica-
tion errors in
succession have
occurred on the
accessory card.
Com. error Acc. –EQ1282
Sensor EQ1-BT25 not connected,
defective.
CoolingDM cal-
culated with
EQ1-BT25 set to
0.
Resets automat-
ically when the
sensor has
worked continu-
ously for 60 s.
Sensor fault EQ1-BT25.323
21Chapter 6 | TroubleshootingNIBE™ VVM 500
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