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215
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'16 • SCM-T-199
(9) Checking the indoor electrical equipment
(a) Indoor PCB check procedure
(b) Outdoor unit
Is there voltage between terminal
blocks
①
and
②
? (AC 220/230/240
V)
Indoor electrical components
are normal.
Is the voltage between terminal
blocks
②
and
③
oscillating between
DC 0 and 20V?
Inspect power source
for outdoor unit.
Replace fuse.
Replace indoor PCB.
Is the fuse burnt out? (3.15 A)
YES
YES
YES
NO
NO
NO
(b) Indoor fan motor check procedure
(i) Indoor PCB output check
① ④
⑤
(ii) Fan motor resistance check
⑥
⑤
④
③
②
①
⑥
⑤
④
③
②
①
FM
I
DC15V
Indoor PCB
DC280V
DC several V
(4 – 6V)
CNU
(–)
GND
Blue
Yello
w
White
Black
Red
Sensor
Operation
mode
Phenomenon
Shortcircuit
Disconnected wire
Heat exchanger
sensor
Cooling
Heating
Ourdoor air
temperature sensor
Cooling
Heating
Discharge pipe
sensor
All modes
Measuring point
Resistance when normal
① − ③
−
④ − ③
−
Measuring
point
Resistance when
normal
① − ③
̾
④ − ③
⑤ − ③
Defrosting is performed for 10 minutes at approx. 40 minutes.
Defrosting is performed for 10 minutes at approx. 40 minutes.
k
1)
2)
3)
Содержание SCM40ZS-S
Страница 114: ...113 16 SCM T 199 source PJA012D783...
Страница 200: ...199 16 SCM T 199 4 Troubleshooting procedure If the air conditioner runs NO NO NO NO YES YES YES YES 200 201 207 201 207...
Страница 285: ...284 16 SCM T 199 B PJZ012D077 2 Model RC EX1A eco touch REMOTE CONTROL RC EX1A INSTALLATION MANUAL...
Страница 311: ...310 16 SCM T 199 4 10 5 Superlink E board SC ADNA E F SL2NA E and SL4 AE BE to control...
Страница 312: ...311 16 SCM T 199...