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[
IX
Troubleshooting ]
1500
Refrigerant
overcharge
An error can be detected
by the discharge temper-
ature superheat.
1.If the discharge SH
10K [18°F] or less is
detected during oper-
ation (the first detec-
tion), the outdoor unit
stops at once, turns to
anti-restart mode for 3
minutes, and restarts
after 3 minutes auto-
matically.
2.If the discharge SH
10K [18°F] or less is
detected again within
30 minutes after first
stop of the outdoor
unit (the second de-
tection), the outdoor
unit will make an error
stop, and the error
code "1500" is dis-
played.
3.If discharge SH 10K
[18°F] or less is de-
tected more than 30
minutes after the out-
door unit stops, and
the operation de-
scribed in step 1
above will start.
4.For 30 minutes after
the stop of the outdoor
unit, preliminary errors
will be displayed on
the LED display.
(1) Overcharged refrigerant
Refer to the page on refrigerant
amount evaluation.
(2) Thermistor input circuit
failure on the main board
(3) Faulty mounting of ther-
mistor (TH11, TH12)
Check the temperature and the pres-
sure of the sensor with LED monitor.
2500
Water leakage When the drain sensor
detects water or its tip be-
comes immersed in wa-
ter.
Water leakage due to problems
with such equipment as a hu-
midifier
Check for water leakage around the
humidifier and clogging of outlet of
the drain pan.
Error Code
Error definition and error
detection method
Cause
Check method and remedy
Содержание PUHY-P168
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Страница 99: ... 90 III Outdoor Unit BC Controller Components 2 RELAY BOARD RELAY 4 board 3 RELAY BOARD RELAY 10 board ...
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Страница 126: ... 117 VI Refrigerant Circuit 1 Refrigerant Circuit Figure 119 2 Principal Parts and Functions 126 ...
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Страница 134: ... 125 VI Refrigerant Circuit 3 CMB P104 and P108NU GB sub TH25 TH22 LEV3a CP Solenoid valves Block Check valves Block ...
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Страница 366: ... 357 IX Troubleshooting ...
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Страница 368: ... 359 X LED monitor display on the outdoor unit board 1 How to read the LED on the service monitor 361 ...
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