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[
IX
Troubleshooting ]
- 136 -
HWE1113B
GB
1302
1. Error
Code
High pressure fault 1 (Outdoor unit)
2. Error definition and error detection method
1) If the pressure of 3.78MPa [548psi] or higher is detected by the pressure sensor during operation (the first detection), the out-
door stops once, turns to antirestart mode for 3 minutes, and restarts after 3 minutes automatically.
2) If the pressure of 3.78MPa [548psi] or higher is detected by the pressure sensor again (the second detection) within 30 min-
utes after the first stop of the outdoor unit, the outdoor unit stops once, turns to anti-restart mode for 3 minutes, and restarts
after 3 minutes automatically.
3) If the pressure of 3.87MPa [561psi] or higher is detected by the pressure sensor (the third detection) within 30 minutes of the
second stop of the outdoor unit, the outdoor unit will make an error stop, and the error code "1302" will be displayed.
4) If the pressure of 3.78MPa [548psi] or higher is detected more than 30 minutes after the stop of the outdoor unit, the detection
is regarded as the first detection, and the operation described in step 1 above will start.
5) For 30 minutes after the stop of the outdoor unit, preliminary errors will be displayed on the LED display.
6) The outdoor unit makes an error stop immediately when not only the pressure sensor but also the pressure switch detects
4.15
+0,-0.15
MPa [601
+0,-22
psi]
3. Cause, check method and remedy
1302
Cause
Check method and remedy
(1)
HBC controller LEV malfunction
Cooling-only/Cooling-main: LEV1, 2
Heating only or heating main : Indoor LEV 1, 2, 3
Defrost : LEV1, 2, 3
Perform a heating operation and check the opera-
tion.
Cooling: LEV on the indoor unit
HBC controller LEV1, 2, 3
SVM1
Heating: LEV on the indoor unit
HBC controller LEV1, 2, 3
Refer to the page on troubleshooting for LEV and
solenoid valve.(page 212)
(2)
HBC controller SVM1 malfunction
->Cooling only or defrost
(3)
Water pump fault
Refer to the section on water pump fault under
"Troubleshooting."(page 238)
(4)
3-way valve/Water flow rate control valve fault (MV1, MV2, and
FCV3)
Refer to the section on 3-way valve/Water flow rate
control valve fault under
"Troubleshooting."(page 237)
(5)
Port address setting error.
Confirm the port address of the indoor unit.
(6)
Refrigerant service valve actuation failure
Confirm that the refrigerant service valve is fully
(7)
Short cycle on the indoor unit side
Check the indoor units for problems and correct
them, if any.
(8)
Clogged filter on the indoor unit
(9)
Reduced air flow due to dirty fan on the indoor unit fan
(10)
Dirty heat exchanger of the indoor unit
(11)
Indoor fan (including fan parts) failure or motor failure
Items (6) through (11) above reduce the condensing capability of
the unit, resulting in high-pressure rise during heating operation.
(12)
Short cycle on the outdoor unit
Check the outdoor units for problems and correct
them, if any.
(13)
Dirty heat exchanger of the outdoor unit
(14)
Outdoor fan (including fan parts) failure, motor failure, or fan con-
troller malfunction
Items (12) through (14) above reduce the condensing capability of
the unit, resulting in high-pressure rise during cooling operation.
Check the fan on the outdoor unit.
Refer to the section on troubleshooting the outdoor
unit fan.(page 211)
(15)
Solenoid valve (SV1a) malfunction
The by-pass valve (SV1a) can not control rise in high pressure.
Refer to the section on troubleshooting the sole-
noid valve.(page 209)
(16)
Thermistor failure (TH3, TH7)
Check the thermistor resistor.(page 157)
(17)
Pressure sensor failure
Refer to the page on the troubleshooting of the
pressure sensor. (page 207)
(18)
Failure of the thermistor input circuit and pressure sensor input cir-
cuit on the controller board
Check the sensor temperature/pressure on the
LED monitor.
(19)
Thermistor mounting problem (TH3, TH7)
Check the sensor temperature/pressure on the
LED monitor.
(20)
Disconnected male connector on the pressure switch (63H1) or
disconnected wire
Содержание City Multi CMB-WP108V-G
Страница 1: ...AIR CONDITIONER 2014 Service Handbook PURY WP200 WP250YJM A CMB WP108V G Model 3rd edition ...
Страница 11: ... 2 HWE1113B GB ...
Страница 27: ... I Read Before Servicing 18 HWE1113B GB ...
Страница 29: ... 20 HWE1113B GB ...
Страница 57: ... 48 HWE1113B GB ...
Страница 70: ... III Outdoor Unit Components 61 HWE1113B GB 2 Power supply circuit board ...
Страница 71: ... III Outdoor Unit Components 62 HWE1113B GB ...
Страница 73: ... 64 HWE1113B GB ...
Страница 81: ... IV Remote Controller 72 HWE1113B GB ...
Страница 83: ... 74 HWE1113B GB ...
Страница 88: ... 79 HWE1113B GB VI Refrigerant Circuit 1 Refrigerant Circuit Diagram 81 2 Principal Parts and Functions 83 ...
Страница 89: ... 80 HWE1113B GB ...
Страница 97: ... 88 HWE1113B GB ...
Страница 127: ... 118 HWE1113B GB ...
Страница 135: ... VIII Test Run Mode 126 HWE1113B GB ...
Страница 137: ... 128 HWE1113B GB ...
Страница 252: ... 243 HWE1113B GB X LED Monitor Display on the Outdoor Unit Board 1 How to Read the LED on the Service Monitor 245 ...
Страница 253: ... 244 HWE1113B GB ...