Nibe AMS 10-16, Installation And Maintenance Instructions Manual

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May be due to Description Alarm text on the dis-
play Alarm
no.
- Open-circuit or short-circuit on sensor input Sensor fault, outdoor sensor in AMS 10 (Tho-A). S. fault Tho-A E38
- Sensor does not work (see "Temperature
sensor" section)
- Defective control board in AMS 10
- Open-circuit or short-circuit on sensor input
Sensor fault, hot gas in AMS 10 (Tho-D). S. fault Tho-D E39
- Sensor does not work (see "Temperature
sensor" section)
- Defective control board in AMS 10
- Insufficient air circulation or blocked heat ex-
changer
The high pressure pressostat (63H1) deployed 5
times within 60 minutes or under 60 minutes
continuously. HP alarm E40
- Open circuit or short circuit on input for high
pressure pressostat (63H1)
- Defective high pressure pressostat
- Expansion valve not correctly connected
- Service valve closed
- Defective control board in AMS 10
- Low or no flow during heating operation
- Defective circulation pump
- Defective fuse, F(4A)
Can occur when 15V power supply to the inverter
PCB is unstable.
When IPM (Intelligent power module) displays
FO-signal (Fault Output) five times during a 60-
minute period. Power transistor too hot E41
- Incoming power supply interference Voltage from the inverter outside the parameters
four times within 30 minutes. Inverter error E42
- Service valve closed
- Insufficient amount of refrigerant
- Compressor fault
- Defective circuit board for inverter in AMS 10
- Open-circuit in connection between boards
Communication between circuit board for invert-
er and control board broken. Inverter error E45
- Defective circuit board for inverter in AMS 10
- Defective control board in AMS 10
- Sudden power failure
Overcurrent, Inverter A/F module Inverter error E47
- The fan cannot rotate freely Deviations in the fan speed in AMS 10. Fan alarm E48
- Defective control board in AMS 10
- Defective fan motor
- Control board in AMS 10 dirty
- Fuse (F2) blown
- Open circuit or short circuit on input for low
pressure transmitter
Too low value on the low pressure transmitter 3
times within 60 minutes. LP alarm E49
- Defective low pressure transmitter
- Defective control board in AMS 10
- Open circuit or short circuit on input for suction
gas sensor (Tho-S)
- Defective suction gas sensor (Tho-S)
- Defective fan motor
Continuous deviation on power transistor for 15
minutes. Inverter error E51
- Defective circuit board for inverter in AMS 10
65 NIBE™ SPLIT
Miscellaneous
Alarm list