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r,
(1) Operation
does
not start.
MS-15DN-{Q]
(_--,-start_)
Check
power
supply
voltage on indoor
terminal block
.
Is
there
11
5V AC between
indoor
terminal
bed
[hi
-
[G]
?
No
Turn on
power
supply
Yes ~
-
--
--
--
-- -
-- - - -
--
-
- - - -
-- -
--
-- - - -
--
- -
-- -
-- ~
Does~ signal mark display for
an
instant
on
Remote
Controller when POWER button
pressed
?
Yes
Does
emergency
run start by
pressing EMERGENCY
button ?
Yes
No
No
Is
Batteries
voltage
over 2.4V ?
Yes
Replace Remote controller
Check
voltage
of
circuit
on Electronic
control
P. C.
board.
Is there
11
5V
AC between connector
CN204([)-@?
No
Yes
Is there
about
13V AC between
connector
CN204Q)-@?
Yes
No
Replace
Batteries
Check
Fuse ( Fl
.
If
it is
defective,
replace
it.
Replace Electronic
control P. C. board
Replace
transformer.
Does indoor unit
receive siganl
with a
beep tone
when POWER
button
pressed
?
No
Replace Receiver board.
30
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