Specifications

-155-
Checking code Meaning, detecting method Cause Checking method & Countermeasure
1302
High pressure
abnoramlity 2
(Outdoor unit)
When press. sensor detects
0.098MPa or less just before
starting of operation, erro stop is
observed with code No. “1302”
displayed.
1) Fall in internal press. caused by
gas leak.
2) Press. sensor trouble.
3) Film breakage.
4) Coming off of pin in connector por-
tion, poor contact.
5) Broken wire.
6) Press. sensor input circuit trouble
on control circuit board.
See Trouble check of pressure sen-
sor.
1500 1.
When discharge superheart
10 deg is keeping for 10 minutes
or discharge superheat 20
deg for 15 minutes, outdoor unit
stops once, and after 3 minutes,
the unit restarts.
For 60 minutes after unit stopped
is intermittent fault check period.
2.
When discharge superheart
10 deg is keeping for 10 minutes
or discharge superheat 20
deg for 15 minutes again (sec-
ond time), the unit stops and er-
ror code 1500 is
displayed.
3.
In case of SW2-6 ON, the de-
tection for the second time is fol-
lowed by the first time.
Overcharged
refrigerant
abnormality
Check resistance of thermistor.
Check temperature and pressure of
sensor with LED monitor.
Check thermistor mounting
See solenoid valve troubleshooting
1)
Excessive refrigerant charge.
2)
Broken wire of liquid level heater.
3)
Poor heater output caused by con-
trol circuit board trouble.
6)
Poor mounting of thermistor.
(TH11, TH12, TH2, TH3, TH4,
TH10a, TH10b)
7) Constant capacity unit SV5b error
8) Constant capacity unit LEV2 error
See Refrigerant amount check.
See LEV troubleshooting
5) Thermistor input circuit trouble on
control circuit board.
4) Thermistor trouble (TH2, TH3, TH4).