Friedrich Multi
Zone Air Conditioner
Error code meaning
Indoor error
Indoor error
00 no error
01 indoor room
themster error
02 Indoor in-piping
sensor error
03 remote controller
error
04 drain pump error
05 Communal error
within and outside
06 indoor out-piping
sensor error
07 Different Mode
Operation
09 EEPROM even error
check
10 Indoor BLDC Fan
Lock
Outdoor error
Outdoor error
21 DC Peak (IPM
Error) – Over rated current off
22 CT2 (Max CT) 2
times – input of current off
23 DC Link Low
Voltage. 2 times – DC link voltage is below 140Vdc off
24 L_P / H_P Switch
– Low / High Press Switch Open Close
25 low voltage /
over voltage – abnormal AC voltage input off
26 DC Compressor
Status Error – Compressor Start Fall Collapse Error
27 PSC / PFC error –
inverter PCB input current is over100A (peak) for 2us off
28 DC Link High
Voltage – Closed
29 over current comp
– inverter compressor turned off
32 D-Pipe High (INV)
– Off Off
40 CT sensor
(short/open) – CT circuit malfunction
41 INV. D-Pipe
Threshold – Open / Short Off
44 Outdoor Air
Threshold – Open / Short Off
45 Cond. Pipe Th
fault – Open / Short Off
46 suction pipe
fault – short/open off
51 Capacity of over
5times – over combination off
52 Signal error (DSP
board <-> main board) – Communication poor shutdown
53 signal error
(indoor <-> outdoor) – communication poor shutdown
Check error 60 Error – Check even missmatching
Check error 60 Error – Check even missmatching
61 Cond. Pipe Th
High – Cond. Temporary. Drunk
62 Heat Sink Th
High-Heat Temp. Drunk
65 Heat Sink
Threshold – Open / Short Off
67 Outdoor BLDC Fan
Lock – Outdoor Fan Is Not Running Off
73 PFC Fault Error
(S / W) – Overall Outdoor Unit PFC
