Trouble Level Of System; System Condition When Outdoor Unit Error Is Occurred - Fujitsu Airstage V series Service Manual

6-2-4

TROUBLE LEVEL OF SYSTEM

<< System Condition when Outdoor Unit Error is occurred >>
Outdoor unit
System Error Flag
Some Error
LED indication
Outdoor unit does not stop
System is not
stopped compulsorily
Some Error
LED indication
Outdoor unit stops.
It is possible to operate
later.
No problem on continuous
operation.
Some Error
LED indication
Outdoor unit stops.
It is not possible to
System is
operate.
compulsorily stopped
Repair needed.
Possible secondary
trouble or failure
<Important>
LED error indication does not disappear even if the power is reset when the following error occurs.
- Compressor failure
- Low pressure error
- Current sensor error
- Inverter start up current error
- Inverter normal current error
- 4 way valve error
The following is the reason why this error does not disappear.
These errors can not be judged without operating the system, and the serviceman
would not be able to check it if the system power is turned off before visiting the site for repair.
To reset this error and operate the system, DIP-SW4-4 setting shall be changed.
Error Flag
It operates continuously.
(Only the subject unit
stops)
Only the subject outdoor
unit stops.
Only the subject outdoor
unit stops.
Subject refrigerant system
is stopped.
1
(1)
It is not indicated on Indoor Unit.
It is indicated on Peripheral Unit.
> Discharge temp. sensor error
(Subject compressor stops)
> Liquid surface temp. sensor error
> Sub cool heat exchanger sensor
error
> Discharge temp. 1-2-3 error
(Subject compressor stops)
> EEPROM access error
> Network communication error
(Some of indoor unit does not
communicate)
> High pressure error
> Pump down error
(No subjective error)
(No subjective error)
06-07
Trouble Level
2
(2)
It is indicated on Indoor Unit.
It is also indicated on Peripheral
> Compressor failure
> Current sensor error
(Inverter compressor stops)
> Inverter error (all errors)
> Inverter start up current error
(Inverter compressor stops)
> Inverter normal current error
(Inverter compressor stops)
> Inverter communication error
(Inverter compressor stops)
(No subjective error)
(No subjective error)
> Low pressure error
> Master unit - Slave unit setting
error
> Parallel communication error
> Reverse phase/Missing phase
wiring error
> Heat exchanger liquid temp.
sensor error
(It stops due to no defrosting.)
> Suction temp. sensor error
(It stops due to broken heating
EEV control)
> Outdoor temp. sensor error
(It stops due to the reverse liquid
flow with mismatching of
EEV initial opening
> Pressure sensor error
> 4 way valve error (it is judged by
Master unit)
> All compressors are not operative
within the same outdoor unit
> Network communication error
(No communication of all indoor
units)
> Priority receiving on Bus
Items shown in red apply for only
Master Unit.