SiEN04-306D
Problem Symptoms and Measures
Service Diagnosis
103
2. Problem Symptoms and Measures
Symptom
Check Item
Details of Measure
Reference
Page
None of the units operates. Check the power supply.
Check to make sure that the rated voltage is
supplied.
—
Check the type of the indoor units.
Check to make sure that the indoor unit type is
compatible with the outdoor unit.
—
Check the outdoor air temperature.
Heating operation cannot be used when the
outdoor air temperature is 24°C or higher (only
for heat pump model), and cooling operation
cannot be used when the outside temperature
is below –5°C (–10°C for Europe).
—
Diagnosis with remote control
indication
—
107
Check the remote control addresses. Check to make sure that address settings for
the remote control and indoor unit are correct.
—
Operation sometimes
stops.
Check the power supply.
A power failure of 2 to 10 cycles can stop air
conditioner operation. (Operation lamp OFF)
—
Check the outdoor air temperature.
Heating operation cannot be used when the
outdoor air temperature is 24°C or higher (only
for heat pump model), and cooling operation
cannot be used when the outside temperature
is below –5°C (–10°C for Europe).
—
Diagnosis with remote control
indication
—
107
Equipment operates but
does not cool, or does not
heat (only for heat pump
model).
Check for wiring and piping errors in
the indoor and outdoor units
connection wires and pipes.
Conduct the wiring/piping error check described
on the product diagnosis nameplate.
—
Check for thermistor detection errors. Check to make sure that the main unit’s
thermistor has not dismounted from the pipe
holder.
—
Check for faulty operation of the
electronic expansion valve.
Set the units to cooling operation, and compare
the temperatures of the liquid side connection
pipes of the connection section among rooms to
check the opening and closing operation of the
electronic expansion valves of the individual
units.
—
Diagnosis with remote control
indication
—
107
Diagnosis by service port pressure
and operating current
Check for insufficient gas.
144
Large operating noise and
vibrations
Check the output voltage of the
power transistor.
—
145
Check the power transistor.
—
—
Check the installation condition.
Check to make sure that the required spaces
for installation (specified in the Technical
Guide, etc.) are provided.
—
Содержание ARXS50C2VMB
Страница 109: ...Instruction SiEN04 306D 100 System Configuration ...
Страница 199: ...Outdoor Unit SiEN04 306D 190 Removal Procedure ...
Страница 200: ...SiEN04 306D Others 191 Part 8 Others 1 Others 192 1 1 Test Run from the remote control 192 1 2 Jumper Settings 193 ...
Страница 203: ...Others SiEN04 306D 194 Others ...
Страница 214: ...SiEN04 306D Wiring Diagrams Appendix 205 FTKD18 24 28BVMS ...
Страница 216: ...SiEN04 306D Wiring Diagrams Appendix 207 RKD18 24 28BVMS ...
Страница 217: ...Wiring Diagrams SiEN04 306D 208 Appendix ...