- 125 -
Checking code
Meaning, detecting method
Cause
Checking method
1500
1.
2.
3.
4.
5.
Overcharged
refrigerant
abnormality
1) Excessive refrigerant charge.
2) Main circuit board thermistor
input circuit trouble
Thermistor mounting trouble
(TH1, TH2)
3)
Refer to the section on judging the
refrigerant volume.
Check the sensor detection
temperature and pressure with
the LED monitor.
If the discharge SH
≤
10K is
detected during operation (at
first detection), the outdoor
unit stops at once. The 3-
minute restart prevention
mode is entered. After three
minutes, the outdoor unit
starts up again.
If the discharge SH
≤
10K is
detected again within 30
minutes after the outdoor unit
stops (second detection), an
abnormal stop is applied, and
"1500" is displayed.
If discharge SH
≤
10K is
detected more than 30
minutes after the outdoor unit
stops, the state is the same
as the first detection and the
same operation as 1 above
takes place.
The abnormal stop delay
period is in effect for 30
minutes after the outdoor unit
stops. The abnormal stop
delay period LED turns ON
during this time.
If the abnormality detection
prohibit switch (SW2-4) is
ON, the same operation as
the first detection will apply
for the second and following
detections.
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Summary of Contents for CITY MULTI CMB-P1016V-F
Page 18: ... 17 RELAY 10 board RELAY 4 board ...
Page 72: ... 71 ...
