Nibe VVM 320 - Scheduling Hot Water Comfort

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B alarm

In the event of a B alarm the green light lights up on the front and a symbol with a service technician is displayed in

the information window until the alarm is reset. All alarms are automatically reset if the cause is rectified.

May be due toActionCauseAlarm text on the

display

Alarm no.

Alarm 101-120. See A-alarm 1-20.Sensor fault BT1101

Sensor fault BT3103

Sensor fault BT6106

Resets automatically when the

sensor has worked continuously

for 60 s.

Replace display

of BT7 temperat-

ure with ”---”

Sensor temporar-

ily missing

Sensor fault BT7107

Suggestion: Cables/cards may need

checking eventually.

-Temporary

problem with

the communica-

tion from base

card to motor

protection

Incorrect phase se-

quence or missing

phase has been detec-

ted. The compressor is

blocked

145

Sensor BT51 not connected, defect-

ive.

Pool pump

stops.

Resets automat-

ically when the

sensor has

worked continu-

ously for 60 s.

sensor fault –CL11-

BT51

151

The temperature of BT12 has ex-

ceeded 59 ºC. The alarm is reset

when the Temperature has

dropped below 59 ºC and condens-

er return (BT3) has dropped 2K

since the alarm.

High condenser out162

The return temperature (BT3) has

exceeded 58 °C. It is reset when the

temperature has dropped to 56 ºC.

High condenser in163

Suggestion: Check electrical anode,

circuit board at the electrical anode

as well as cables to the electrical

anode.

Electrical anode

fault

Electrical anode incor-

rect

166