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Si12-411A
Troubleshooting
Service Diagnosis
189
Troubleshooting
Check No.5
Refer to P.208
Check No.6
Refer to P.209
Check No.11
Refer to P.212
Correct.
Reconnect.
Replace the four-way valve
coil.
Replace the outdoor unit
PC board.
Reconnect in position.
Replace a defective
thermistor.
Refer to the refrigerant line
check procedure.
Replace the four-way valve
(defective or dust-clogged).
(Q0353)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Four-way valve coil
disconnected (loose)?
YES
YES
NO
Functioning
NO
C
heck No.
11
Check the refrigerant line.
Malfunctioning
z
Water mixed
z
Shut-off valve defective
Harness out of connector?
NO
YES
Disconnect the
harness from
the connector.
Resistance between
harnesses about
1500 ohms?
Malfunctioning
Functioning
C
heck No.
5
Check the four-way valve
switching output.
YES
NO
Any thermistor disconnected?
Malfunctioning
Functioning
C
heck No.
6
Check the thermistors.
Check the continuity of the four-
way valve coil and harness.
Summary of Contents for 2MKD58BVM
Page 1: ...C Series Applied Models zInverter Multi Cooling Only zInverter Multi Heat Pump Si12 411A ...
Page 6: ...Si12 411A Table of Contents v Index i Drawings Flow Charts v ...
Page 7: ...Si12 411A vi Table of Contents ...
Page 67: ...Specifications Si12 411A 56 Specifications ...
Page 173: ...Instruction Si12 411A 162 System Configuration ...
Page 227: ...Check Si12 411A 216 Service Diagnosis ...
Page 295: ...Si12 411A iv Index ...
Page 298: ...Si12 411A Printed in Singapore 03 2005 AK COS ...