Carrier AquaSnap Plus 30AWH006H Installationsanleitung Seite 20

System test
GMC Board Alarm Codes
There is an LED on the GMC board that displays any board
LED using the following table. In the case of more than one
error, the error with the highest priority will be displayed
until it is resolved.
In the case of normal operation, the LED flashes at a
frequency of ½ Hz. In the case of an error, the LED remains
off for 4 seconds, then at a frequency of 1Hz, it flashes a
number of times equal to the error code and than remains
off again for 6 seconds. If the error code has 2 digits, the
second digits.
Fault Code Description
3 Enter water Temperature Thermistor (EWT)
4
5 Air Thermistor of GMC
6 Loss communication to NUI control
7 NUI control Room Thermistor
8 Unit Capacity Mismatch
9
10
11 Air temperature higher than Stop Heat
12 Air temperature lower than Stop Cool
13
14 Loss of Signal From inverter board
15 Exit water Temperature Thermistor (LWT)
17 Inverter Air Thermistor (TO)
18 G-Tr inverter short circuit protection
20 Compressor position Detection Circuit error
21 Inverter Current Sensor error
22 Heat Exchanger Sensors (TE) / (TS)
23 Discharge Temperature Sensor (TD)
24 Outdoor Fan motor error
26 Other inverter board error
27 Compressor Lock
28 Discharge Temperature error
29 Compressor Breakdown
30 Other inverter board error
31 High Temperature Release
Board position
Fig. 16
Legend:
C Installation terminal strip
12 30AW
Example: error 23: LED off for 4 seconds. 2 flashes at a
frequency of 1Hz. Off for 2 seconds. 3 flashes at a frequency
of 1Hz. Off for 6 seconds. The cycle repeats until the LED
turns off because the problem is resolved or if an error with
higher priority occurs.
(Fig. 16)