Specifications

107
SELF-DIAGNOSIS
12
12-1. Malfunction-diagnosis method by remote controller
12-1-1. Error history of unit
(1) Wired remote controller
Mode number
Setting number
Refrigerant address
Unit number
PAR-20MAA
ON/OFF
CENTRALLY CONTROLLED
ERROR CODE
CLOCK
ON OFF
˚C
CHECK
CHECK MODE
FILTER
TEST RUN
FUNCTION
˚C
1Hr.
NOT AVAILABLE
STAND BY
DEFROST
FILTER
CHECK TEST
TEMP.
TIMER SET
E
G
CD H
F
I
A
B
J
<In case of trouble during operation>
If there is a trouble on air conditioner, both indoor unit and out-
door unit will stop and digital display shows what was wrong.
1 “CHECK” and refrigerant address are displayed at set tem-
perature display, check code and unit number are displayed
at clock display alternately.
(If outdoor unit is malfunctioning, unit number is 00.)
2 The refrigerant address of unit that first made trouble (that
received check code) and check code are displayed, if
group control system of plural refrigerant is set by one
remote controller.
3 Press the “ON/OFF” button to cancel check code.
[Remote controller can not cancel check code at the case of
distant operation of distant-handy combined operation and
the case of central control by controller of MELANS.
Cancel distant operation or central control to cancel check
code.]
<Malfunction-diagnosis method at maintenance
service>
Digital control has memory function that menorizes latest
check code even if it is cancelled by remote controller or
power is shut off.
Indoor unit fan stops during malfunction-diagnosis process on
maintenance service.
Search error histories of each unit by remote con-
troller.
1 Turn to self-diagnosis mode.
Press the H “CHECK” button twice within three seconds,
and following display appears.
a) Error code
2 Set refrigerant address number that you want to diagnose.
Press the F (temp.) button to set refrigerant address
to be diagnosed.
Refrigerant address has number from 00 to 15.
Three seconds after setting, lighted self-diagnosed refriger-
ant address begins blinking and self-diagnosis process
begins.
3 Self-diagnosis result display
See the above chart for details of error code contents.
(1) When there is an error history.
b) Alternating display
c) Error code
d) Attribute of error search
e) Unit number
(2) When there is no error history.
(3) When the address does not exist.
1
2
a)
3(1)
c)
b)
d)
e)
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