System Test; Inverter Board Alarm Codes (Only For Ereba) (Fig. 13) - CIAT EREBA 8H Installation Manual

9 - SySTem TeST

9.1 - Inverter board alarm codes (only for ereBa)
(Fig. 13)
Troubles of the inverter can be diagnosed by LED
indications on the cycle control P.C. board of the outdoor
unit. Utilize them for various checks.
LED indication and code checking
LED indication
D800 O: Red
D801 O: Yellow
D802 O: Yellow
D803 O: Yellow
s
: Flashing
: Off
: On
Board position:
See fig. 13
cycle control p.c. board
LED indication
D800 D801 D802
 

 


 
 

 

  
 

 


 

 
 

s
 
s
 
s s

s
 
s s

Before a check, confirm each bit of the DIP switch is set to
OFF position.
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

Cause
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