Carrier AquaSnap Plus 30AWH004HB Installation Manual page 21

System test
Inverter board alarm codes (only for 30AWH015_)
The error which is generating at present and the latest
error (Latest error information including present) can be
confirmed by lighting LED D800 toD804 on the outdoor
control P.C. board.
a) When all DIP switch SW803 are OFF, the status of error
which is generating at present is displayed.
b) <1> only of DIP switch SW803 is turned on, the error
which generated before (Latest error information including
present) is displayed. )
Present Latest
error error
SW803 SW803
Display 1
(Initial display) (SW800 operation )
(Legend)
Display 2
Error contents
Normal
Discharge temp. sensor (TD) error
Heat exchanger temp. sensor (TE) error
Heat exchanger temp. sensor (TL) error
Outside temp. sensor (TO) error
Suction temp. sensor (TS) error
Heat sink temp. sensor (TH) error
Heat exchanger sensor (TE, TS) miswiring
EEPROM error
Compressor break down
Compressor lock
Current detection circuit error
Case thermostat operation
Model unset
Communication error between MCU
Other error (Compressor disorder, etc.)
Discharge temp. error
Power supply error
Heat sink overheat error
Gas leak detection
4-way valve reverse error
High pressure protective operation
Fan system error
Driving element short-circuit
Position detection circuit erro
c) If there is an error, any of LED D800 to D804 goes on.
(Display 1)
d) When pushing the pushdown button switch SW800 for
approx. 1 second, the display is exchanged. (Display 2)
e) When pushing SW800 again or after 2 minutes, the status
returns to that of Display 1
( Yellow)
( Yellow)
( Yellow)
( Yellow)
Go off
( Yellow)
( Green)
(Fig. 16)
Go on Flash
30AWH 13