Meanings Of Alarm Messages - Sanyo SPW-T253GH56 Service Manual

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Meanings of alarm messages

If an error occurred in the air conditioner, the error condition is presented by indicating the
error code in the wired remote controller display or by the combination of lamp statuses for
operation, timer and heat stand-by (OFF status and flashing status).
Possible causes of troubles
Remote controller is detecting
unusual signal from indoor unit.
• Indoor unit is detecting unusual signal from the remote controller or group control.
(No serial communications signal)
Improper setting of indoor unit or
remote controller.
Indoor unit is detecting unusual
signal from signal option.
Improper setting of indoor unit or
remote controller.
Indoor unit is detecting unusual
signal from outdoor unit.
Outdoor unit is detecting
unusual signal from indoor unit.
Auto. address setting is not
correct.
Indoor unit is detecting unusual
signal from another indoor unit.
Improper setting of indoor unit or
remote controller.
Improper wiring connections of ceiling panel.
Protective device in indoor unit
is activated.
Protective device in outdoor unit
is activated.
Error receiving of serial communications signal.
Error transmitting of serial communications signal.
Indoor unit address setting is duplicated.
Remote controller address (RCU.ADR) is duplicated.
Error transmitting of serial communications signal
Error receiving of serial communications signal.
When using flexible combination control, main indoor unit address
setting is duplicated. (judged by outdoor unit.)
Error receiving of serial communications signal.
Error transmitting of serial communications signal
Error receiving of serial communications signal.
(Confirmation error of unit numbers included)
Error transmitting of serial communications signal.
No. of judged indoor units or total capacity of indoor units is small.
No. of judged indoor units or total capacity of indoor units is large.
Error transmitting of serial communications signal
Error receiving of serial communications signal.
Indoor unit group address is not correct.
Model setting of indoor unit is not matching the outdoor unit.
When using group control, main indoor unit address setting is duplicated.
(judged by indoor unit.)
Outdoor unit address is duplicated.
Improper wiring between indoor units.
(There is a group connection wiring in case of individual control.)
Indoor unit address (or group address) is not set.
Capacity code of indoor unit is not set.
Improper wiring of group control wiring.
Indoor unit model setting is improper (capacity)
Thermal protector in indoor fan motor is activated.
Float switch is activated.
• Thermal protector in outdoor fan motor is activated.
• PC or AC Compressor thermal protector is activated.
• Power supply voltage is unusual. (The voltage is more than
260 V or less than 160 V between L and N phase.)
Discharge gas temperature of PC comp. is unusual.
High pressure switch is activated.
Negative phase or voltage drops.
Other indooor unit is warning.
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4. Service procedures
Wired remote Wireless remote
controller controller
display display
E01
Operation
lamp flashes
E02
O: Operation
E03
lamp
: Timer lamp
E08
:Heat stand-
E09
by lamp
E10
E11
E14
E04
Heat stand-by
lamp flashes
E05
E06
:Operation
lamp
: Timer lamp
E07
O: Heat stand-
E15
by lamp
E16
E17
E18
L01 Operation lamp
and heat stand-
L02
by lamp flash at
L03
the same time.
O: Operation
L04
lamp
L07 : Timer lamp
O: Heat stand-
by lamp
L08
L09
L11
L13
: Operation
P09
lamp
O: Timer lamp
P01
O: Heat stand-
P10 by lamp
Operation lamp
P02
and heat stand-by
lamp flash
alternately.
O: Operation
P03
lamp
P04
: Timer lamp
P05 O: Heat stand-
by lamp
P31
SM830034
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