Troubleshooting For Normal Malfunction; The Foremost Inspecting Items - Tadiran Telecom Swift Inverter 9U Service Manual

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9-3 Troubleshooting for Normal Malfunction

 The Foremost Inspecting Items
① The input voltage must be within +10% tolerance of the rated Voltage. If it is not
the case, the air-conditioner will probably not work normally.
② Check the connecting cord between indoor unit and outdoor unit to see if it is
properly connected. The connecting must be done according to the wiring diagram,
Internal coil Internal coil sensor, main internal control
sensor error panel.
Mechanical jam of fan, internal fan, main
Indoor fan error
internal control panel.
Refer to tooling
display for other Entire set of external controller.
errors
System pressure, compressor cap sensor
Compressor cap
(protection switch), main external control
sensor error
panel.
Recirculated Recirculated sensor, four-way valve switch
sensor error error, main external control panel.
※ Compressor
Power voltage, module panel, main
overpower
external control panel.
protection
※ Over current
Power voltage, system pressure, module
protection panel, main external control panel.
Exhaust sensor System pressure, exhaust sensor, main
error external control panel.
※ Cooling
Condenser, external fan, capillary, external
overload
coil sensor, main external control panel.
protection
※ Indoor high
Evaporator, internal fan, thin unit
temperature connection pipe, internal coil sensor, main
heating protection internal control panel.
※ Indoor
Evaporator, internal fan, capillary, internal
cooling freezing
coil sensor, main internal control panel.
protection
Compressor shell
temperature Same as "18 Compressor cap sensor error".
protection
※ OVP or UPV
Power voltage, reactor, module panel, main
error external control panel.
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