General Problem Symptoms and Check Items
SiUS092230EA
112
Part 6 Service Diagnosis
1. General Problem Symptoms and Check Items
Symptom
Check Item
Measures
Reference
Page
The unit does not
operate.
Check the power supply.
Check if the rated voltage is supplied.
—
Check the type of the indoor unit.
Check if the indoor unit type is compatible with the
outdoor unit.
—
Check the outdoor temperature.
Heating/cooling operations are not available when
the outdoor temperature is out of the operation
limit. Check the reference page for the operation
limit.
Diagnose with remote controller
indication.
—
Check the remote controller
addresses.
Check if address settings for the remote controller
and indoor unit are correct.
Operation sometimes
stops.
Check the power supply.
A power failure of 2 to 10 cycles stops air
conditioner operation. (Operation lamp OFF)
—
Check the outdoor temperature.
Heating/cooling operations are not available when
the outdoor temperature is out of the operation
limit. Check the reference page for the operation
limit.
Diagnose with remote controller
indication.
—
The unit operates but
does not cool, or does
not heat.
Check for wiring and piping errors in
the connection between the indoor
unit and outdoor unit.
—
—
Check for thermistor detection errors. Check if the thermistor is mounted securely.
—
Check for faulty operation of the
electronic expansion valve.
Set the unit to cooling operation, and check the
temperature of the liquid pipe to see if the
electronic expansion valve works.
—
Diagnose with remote controller
indication.
—
Diagnose by service port pressure
and operating current.
Check for refrigerant shortage.
—
Large operating noise
and vibrations
Check the resistance between the
terminals of the power module.
—
Check the power module.
—
—
Check the installation condition.
Check if the required spaces for installation
(specified in the installation manual) are provided.
—
Содержание RX-W Series
Страница 1: ... Applied Models Inverter Pair Heat Pump Service Manual SiUS092230EA Inverter Pair RX W Series ...
Страница 15: ...SiUS092230EA Part 1 General Information 9 1 Applicable Models 10 2 Functions 11 Part 1 General Information ...
Страница 107: ...SiUS092230EA BRC082A41W BRC082A42W S Part 5 Remote Controller 101 4 BRC082A41W BRC082A42W S R23936 R23937 ...
Страница 151: ...SiUS092230EA Troubleshooting for FDMQ FFQ Series Part 6 Service Diagnosis 145 Reference Check No 02 Refer to P 191 ...
Страница 207: ...SiUS092230EA Check Part 6 Service Diagnosis 201 15 18 24 class R25105 1 2 3 4 Multimeter ...
Страница 209: ...SiUS092230EA Check Part 6 Service Diagnosis 203 15 18 24 class R20704 W V U DC_P1 DC_N1 ...
Страница 238: ...Piping Diagrams SiUS092230EA 232 Part 8 Appendix 1 2 Outdoor Unit RX09 12WMVJU9 RX15 18WMVJU9 3D135014 3D141501 ...
Страница 239: ...SiUS092230EA Piping Diagrams Part 8 Appendix 233 RX24WMVJU9 3D141502 ...
Страница 246: ...Operation Limit SiUS092230EA 240 Part 8 Appendix 3 Operation Limit RX09 12 15 18 24WMVJU9 3D092209F ...