Daikin 2MXS-W Series User Manual

Check SiUS122226E
228 Part 6 Service Diagnosis
8.5 Four Way Valve Performance Check
Check No.13
R6000939
Start heating operation.
NO
YES
YES
Four way valve
coil resistance at
520 ~ 620 ?
NO
Turn off the power and turn it on
again.
Replace the outdoor unit
PCB.
Replace the outdoor unit
PCB.
Replace the four way valve
coil.
Replace the four way valve.
NO
YES
S80
voltage at 270 ~
360 VDC for 3 sec. after
compressor starts, and then at
about 14 ~ 18 VDC?
(Fig. 1)
Disconnect the four way valve coil
from the connector and check the
continuity.
(Fig. 1)
Voltage at S80
270 ~ 360 VDC
14 ~ 18 VDC
Time
Compressor
ON
3 sec.
< Caution on resetting the power supply >
 Be sure to wait for 30 sec. or more after turning off the power.
Four way valve coil
Cooling / Dry : No continuity
Heating : Continuity
S80
voltage at 0 VDC
with the outdoor unit
energized?

Daikin 2MXS-W Series Specifications

General

Brand	Daikin
Model	2MXS-W Series
Category	Air Conditioner
Language	English