Nibe VVM 500 Service Manual

May be due toActionCauseAlarm text on the
display
Alarm no.
Check the Communication cables.Block accessory3 communica-
tion errors in
succession have
occurred on the
pool accessory
card
Com. error Acc. –Cl11178
Check settings of the dipswitch
Activates if the heating is blocked
and the outdoor temperature (BT1)
falls below 3 ºC.
Freeze prot180
Heating is permitted and con-
trolled by min. supply.
Periodic increase has failed to reach
stop temp. within 5 hours.
Unsuccessful periodic
increase
181
One or more power steps blocked
due to high current measured on
current sensor.
Load monitor activ-
ated
182
Defrosting in progress.Defrosting183
Reminder to check filter. The ma-
chine has not been stopped for the
number of months set in menu
5.1.99.
Filter alarm184
Temporary communication fault.
See alarm 91.
Com. error WWC191
Temporary communication fault.
See alarm 93.
Com. Error DEW193
Temporary communication fault.
See alarm 96.
Comm. room unit,
zone 1
196
Temporary communication fault.
See alarm 97.
Comm. room unit,
zone 2
197
Temporary communication fault.
See alarm 98.
Comm. room unit,
zone 3
198
Temporary communication fault.
See alarm 99.
Comm. room unit,
zone 4
199
Temporary communication fault.
See alarm 100.
Com.Error inverter200
Inverter indicates alarmInverter alarm201
See alarm log menu 3.4 for error
code .
Inverter indicates errorInverter errors202
See alarm log menu 3.4 for error
code .
NIBE™ VVM 500Chapter 6 | Troubleshooting20

Nibe VVM 500 Specifications

General

Type	Indoor module
Volume	500 liters
Integrated immersion heater	Yes
Energy efficiency class, DHW preparation	A
Compatible with	NIBE air/water heat pumps
Refrigerant	Not applicable
Cooling Capacity	Matches the heat pump it is connected to.