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ESIE13-02
Troubleshooting
(*) See also "Check No.6 - Evaluation of Abnormal High Pressure" on page 156.
Caution
Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
Check the installation
conditions.
Is the
NO
stop valve
open?
YES
Are control
and protection HPS
NO
connected to outdoor unit
PC board?
(Note)
YES
Turn off the power supply.
Wait for 10 minutes after
compressor stops operating,
then check the following.
Is there
NO
continuity in control and
protection HPS?
YES
Is high pressure
abnormally high?
Set the remote controller and
turn on again.
malfunction code of "H3"
displayed?
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
P = 1.38V - 0.69
0.5
0.5
P : Detected pressure (MPa)
V : Output voltage
Output voltage V
105
Open the stop valve.
Connect correctly.
Replace HPS with no
continuity.
YES
Correct the high pressure.
(*)
NO
Is the
YES
Replace the high pressure
switch (HPS).
NO
* Replace the outdoor unit
PC board (A1P) ERHQ***V3* / ERLQ***V3*
* Replace the inverter PC board
(A2P) ERHQ***W1* / ERLQ***W1*
P
0
0.5
1
1.5
2
2.5
3
3.5
(V
)
DC
Error Codes: Outdoor Units
Part 4 – Troubleshooting
4
3
4
4
5
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Troubleshooting
