Remote Controller Diagnosis - Mitsubishi Electric PUMY-P125VMA Technical & Service Manual

Display
Meaning and detecting method
7105 Address setting error
Address setting of the outdoor unit is
wrong.
7111 Remote controller sensor abnormality
In the case of network remote controller, it
is an abnormality when incapable
response returns from the net work remote
controller during the operation.

9-2. Remote controller diagnosis

• MA remote controller is equipped with the diagnosis function.
Check the remote controller with this function when the unit does not operate with the remote controller.
(1)
Electric current marker
(2)
(3)
a)
b)
Causes
Addresses miss setting of the outdoor
unit.
The outdoor unit is not set in 000 or in
the range of 51-100.
When an old type remote controller for
M-NET is used, and the remote
controller sensor is specified (SW1-1
is ON).
(1) First, check the electricity current maker.
If the correct voltage (DC 8.7~13V) is not supplied on the
remote controller, the electric current marker will be lit.
If the electricity current marker is not lit, check the remote
controller wiring and the indoor units.
(2) Transfer to remote control diagnosis mode.
Hold down the CHECK button for five seconds or more to
display the diagram on the left.
Press the FILTER button to commence diagnosis of remote
controller.
(3) Remote controller diagnosis results.
a) The remote control is functioning correctly.
Check other possible causes as there are on problems
with the remote controller.
b) The remote controller has a nonconformity.
The remote controller must be replaced.
Error display 1 ("NG") flashes to show a nonconformity
in the transmitter-receiver circuit.
57
Check points
Check the address setting of the
outdoor unit. The address should be
set in 000 or 51-100.
When the setting is out of the range,
reset it, turn off power supply of the
outdoor unit, indoor unit and lossnay
for 2minutes or more at the same
time, and turn on power supply again.
Replace the remote controller to net
work remote controller.
To be continued on the next page.