Toshiba RAS-M10U2KCVG-SG1 x5 - Page 76

Correct connector.
Sensor error → Replace.
Check outdoor P.C.B. WP-041.
Defect → Replace.
Is connection of CN604
on P.C.B WP-041 correct?
Is resistance value of TGa sensor correct?
Is connection of CN605
on P.C.B WP-041 correct?
Is resistance value of TGb sensor correct?
Is connection of CN606
on P.C.B WP-041 correct?
Is resistance value of TGc sensor correct?
Correct connector.
Sensor error → Replace.
Check outdoor P.C.B. WP-041.
Defect → Replace.
Correct connector.
Sensor error → Replace.
Check outdoor P.C.B. WP-041.
Defect → Replace.
YES
NO
YES
NO
YES
NO
Check
code
[1C]
(Continued)
Outdoor
LED display
zzz
{*
Check and troubleshooting
(Item without special mention indicates part of outdoor unit.)
[A room gas side temp. sensor (TGa) error]
[B room gas side temp. sensor (TGb) error]
[C room gas side temp. sensor (TGc) error]
{:ON
(
{*:3 sec ON / 0.5 sec OFF)
z:OFF
*zz
{*
*z
{*
YES
NO
[Communication error between MCUs]
Are connections of CN802 on P.C.B MCC-1571
and CN802 on P.C.B WP-041 correct?
Correct connection.
Check outdoor P.C. Boards.
Defect → Replace.
*z*z

Are connections of CN802 on P.C.B WP-041
and CN802 on P.C.B MCC-1571 correct?
Are connections of CN804 on P.C.B WP-041
and CN800 on P.C.B MCC-1571 correct?
Correct connection.
Check outdoor P.C. Boards.
Defect → Replace.
Correct connection.
Check outdoor P.C. Boards.
Defect → Replace.
YES
YES
NO
NO
[Communication error between MCUs]
[Communication error between MCUs]

*{**{*

z
{*
*{**{*

Is connection of CN607
on P.C.B WP-041 correct?
Is resistance value of TGd sensor correct?
Correct connector.
Sensor error → Replace.
Check outdoor P.C.B. WP-041.
Defect → Replace.
YES
NO
zz
[D room gas side temp. sensor (TGd) error]
{**
{*
Is connection of CN608
on P.C.B WP-041 correct?
Is resistance value of TGe sensor correct?
Correct connector.
Sensor error → Replace.
Check outdoor P.C.B. WP-041.
Defect → Replace.
YES
NO
[E room gas side temp. sensor (TGe) error]
zz
{*
z
{*
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