Toshiba MMY-MAP0806HT7(J)P, Service Manual, Page: 131 / 350

Miswiring example
Figure
Remote
controller
status
Header unit
7-segment
display
Miswiring example
Fig. 1
No
response
E19-00
Fig. 2
No
response
E19-02
Fig. 3
No
response
E20-01
e l p m a x e g n i r i w s i M s u t a t S e r u g i F
Fig. 4
The number of connected
outdoor units is too few.
Fig. 5
The number of connected
indoor units is too few.
U3 U4 U5 U6
U1 U2 U1 U2 U1 U2 U1 U2
Header unit Header unit
U1 U2
Header unit
U1 U2 U1 U2
U5 U6 U1 U2 U5 U6
Follower unit
U1 U2
U1 U2 U1 U2
U1 U2 U1 U2
U1 U2 U1 U2
U5 U6
U1 U2
U1U2 U1 U2
[Line 1]
U1 U2
Header unit Follower unit Header unit Follower unit
Header unit Follower unit
[Line 2]
U1 U2
U1 U2 U1 U2
U3 U4 U1 U2
U1 U2 U1 U2
U3 U4 U1 U2
U1 U2 U1 U2
U5 U6
U5 U6
U3 U4
U1 U2
or
or
U3 U4
U1 U2
Header unit Follower unit Header unit Follower unit Header unit Follower unit
or
Wiring forgotten
U1 U2
U1 U2
A B
U1 U2
U1 U2 U1 U2
t i n u r e w o ll o F t i n u r e d a e H
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