Diagnostic; Inverter Alarms; Error Codes 30Awh012 Only; Led Indication And Code Checking - Carrier 30AWH004HB Service Manual

6.1 Diagnostic

6.1 Inverter alarms

6.1.1 Error codes 30AWH012 only

Troubles of the unit can be diagnosed by LED indications on the cycle
control P.C. board of the unit. When multiple errors are detected, the
latest error is displayed.
of control at CDB side and the unit stops.
part of control at PC board side and the unit stops.

LED indication and code checking

LED indication
D800 O: Red
D801 O: Yellow
D802 O: Yellow
D803 O: Yellow
: Flashing
: Off
: On
IPDU are the Inverter Board.
SM_30AW.indd 71
Cycle control P.C. board
LED indication
D800 D801 D802
interrupted on the serial circuit. If the case thermostat operation happens
continuously, a serial communication error occurs because of a serial
message has been sent.
D803
Heat exchanger sensor (TE) error
Suction sensor (TS) error
Hot gas discharge sensor (TD) error
High-pressure protection error
Outdoor air temperature sensor error (TO)
Outdoor motorised fan error DC
Communication error between IPDU (Abnormal stop)
High-pressure release operation
Discharge temp. error: hot gas is too high
EEPROM error
Communication error between IPDU (No abnormal stop)
G-Tr short-circuit protection
Detect circuit error
Current sensor error
Comp. lock error
Comp. break down
LED
indication
ATTENTION: Problems of 30AWH004 -30AWH006
-30AWH008 units can be diagnosed by GMC board.
71
6
Diagnostic
Cause
30AW
14-03-2011 14:45:19