Toshiba RAS-107SKV-E5 Technical Handbook page 33

Code Fault Description
E19 00 Outdoor header error. Detected at outdoor. Likely cause power loss to indoor units, U1/U2 network cable condition, SW30 bit 1 & 2 must be ON to test
E19 01 Outdoor header error. Detected at outdoor. Likely cause incorrect wiring between modularised condensers
e2 80 Multi-Control box 2 Th(A) sensor fault. Likely cause TH(A) sensor or M/C box PCB sensor value 20°c=12.5k ohms
e2 81 Multi-Control box 2 Th(B) sensor fault. Likely cause TH(B) sensor or M/C box PCB sensor value 20°c=12.5k ohms
e2 82 Multi-Control box 2 Th(C) sensor fault. Likely cause TH(C) sensor or M/C box PCB sensor value 20°c=12.5k ohms
e2 83 Multi-Control box 2 Th(D) sensor fault. Likely cause TH(D) sensor or M/C box PCB sensor value 20°c=12.5k ohms
e2 84 Multi-Control box 2 Th(X) sensor fault. Likely cause TH(X) sensor or M/C box PCB sensor value 20°c=12.5k ohms
One or more systems connected on network during self-addressing procedure. Detected at outdoor. Likely cause if condenser PCB displays sub code
01=multiple outdoor systems connected on U3/U4 network, miss-wiring or central control relay connecter in-place. If sub code reads 02=indoor units
E20
from other line connected, miss-wiring or central control relay connecter in-place. Retrieve fault sub-code from condenser interface PCB by placing
rotary dials to position 1 / 1 / 1 for diagnosis.
Multiple indoor system line numbers connected on network during self-addressing procedure. Detected at outdoor. Likely cause miss-wiring of indoor
E20 01
network cable, central control relay connecter together during self-address
Multiple outdoor system numbers connected on network during self-address procedure. Detected at outdoor. Likely cause miss-wiring of outdoor units,
E20 02
central control relay/plug connected during self-address
E23 Communication error between outdoor units. Detect outdoors. Likely cause U5/U6 cable condition, interface PCB fault
E25 Duplicated follower outdoor unit address. Detected at outdoor. Likely cause error in manually assigning addresses, allow system to self-address
E26 Decrease in quantity of outdoor units connected. Detected at outdoor. Likely cause power loss at condensers, U5/U6 cable condition
Outdoor follower fault. Detected at outdoor. Likely cause lead condenser OK, follower condenser has suffered fault, retrieve second fault code from
E28
follower condenser
IPDU/PCB board communication error. Detected at outdoor. Likely cause loss in communication between condenser PCB's. Retrieve fault sub-code
E31
from condenser interface PCB by placing rotary dials to position 1 / 1 / 1 for diagnosis.
Compressor 1 IPDU board communication error. Detected at outdoor. Likely cause check communication cable linking all PCB's, replace Compressor 1
E31 01
IPDU board
Compressor 2 IPDU board communication error. Detected at outdoor. Likely cause check communication cable linking all PCB's, replace Compressor 2
E31 02
IPDU board
Compressor 1 & 2 IPDU board communication error. Detected at outdoor. Likely cause check communication cable linking all PCB's, replace
E31 03
Compressor 1 & 2 IPDU board
Communication failure between PCB's within condenser. Detected at outdoor. Fault Code is outdoor model series specific e.g. MMY-MAP###1HT8-E,
E31 04 MMY-AP###2HT8-E or MMY-MAP###4HT8-E therefore example fault code for E3104 will be (MMY-MAP0801HT8-E
(series 2), MMY-MAP0804HT8-E
E31 04 1 Fan IPDU board communication error. Detected at outdoor. Likely cause check communication cable linking all PCB's, replace fan IPDU board
E31 04 2 Fan IPDU board communication error. Detected at outdoor. Likely cause check communication cable linking all PCB's, replace fan IPDU board
Compressor 3 IPDU board communication error. Detected at outdoor. Likely cause check communication cable linking all PCB's, replace Compressor 3
E31 04 4
IPDU board
(series 4) search E31041, E31042 or E31044
(series 1), MMY-MAP0802HT8-E
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