Replace fan motor.
Rotate shaft of the fan motor by hands
during power-OFF, Can it rotate smoothly?
Is coil resistance of fan motor correct?
Between red and white lead wire :12 to 20
Ω
.
Between white and black lead wire :12 to 20
Ω
.
Between black and red lead wire :12 to 20
Ω
.
YES
NO
YES
NO
YES
NO
YES
NO
NO
NO
YES
NO
Correct connector.
Sensor error
→
Replace.
Check outdoor P.C.B MCC-
1665
Defect
→
Replace.
Correct connector.
Sensor error
→
Replace.
Check outdoor P.C.B MCC-
1665
Defect
→
Replace.
Is AC mains voltage correct?
(198 to 264V)
Is connection of CN603
on P.C.B MCC-
1665
correct?
Is resistance value of TS sensor correct?
Is connection of CN601
on P.C.B MCC-
1665
correct?
Is resistance value of TE sensor correct?
Correct connector.
Sensor error
→
Replace.
Check outdoor P.C.B MCC-
1665
Defect
→
Replace.
Check wiring construction.
Ask repair of power supply.
Check outdoor P.C.B MCC-1
645
Defect
→
Replace.
Is connection of CN600
on P.C.B MCC-
1665
correct?
Is resistance value of TD sensor correct?
Correct connector.
Sensor error
→
Replace.
Check outdoor P.C.B MCC-
1665
Defect
→
Replace.
Is connection of CN602
on P.C.B MCC-
1665
correct?
Is resistance value of TO sensor correct?
Check
code
[18]
Outdoor
LED display
Check and troubleshooting
(Item without special mention indicates part of outdoor unit.)
∗
There is a possibility that it is one of the following errors.
Confirm LED on
d
isplay
P.C. board
(MCC-1646)
to judge which error it is.
Heat exchanger temp. sensor (TE) error, Suction temp. sensor (TS) error
[Suction temp. sensor (TS) error]
[Heat exchanger temp. sensor (TE) error]
[Discharge temp. sensor (TD) error]
[Fan system error]
[Outside temp. sensor (TO) error]
[1A]
[1B]
[19]
zz
{
*
{
*
z
z
{
*
z
*
z
*
z
*
*
z
{
{
:ON
(
{
*:3 sec ON / 0.5 sec OFF)
z
:OFF
{
*
*
{
*
z
*
{
*
*
{
*
z
- 8
6
-
FILE NO. SVM-15102
Summary of Contents for RAS-2M14S3AV-E
Page 31: ...4 1 Outdoor Unit 4 CONSTRUCTION VIEWS FILE NO SVM 15102 31 Unit mm ...
Page 116: ......
