Troubleshooting - Mitsubishi Electric PK-2.5FLD Technical & Service Manual

11

TROUBLESHOOTING

1. Self-diagnostic function [for PK-2.5FLD
(1) Turn on the main power of the unit.
(2) Set the adjusting switch on the back of
the wireless remote controller to "Set"
CHECK and TEST RUN will start light-
ing.
(3) Push the HR button, CHECK will start
blinking.
(4) Send the signal from the remote controller
to the unit with pressing HR button.
If the buzzer sound is heard and the
ON/OFF lamp (unit display) blinks, refer to
following table.
The number of
Buzzer sound ON/OFF lamp
(Unit display) blinking
1 second This corresponds
(0.5 second interval) to the number of
Beep buzzer sound
The number of
ON/OFF lamp
Irregular point
(Unit display) blinking
and buzzer sound
1 Irregular intake sensor
2 Irregular piping sensor
4 Irregular drain sensor
5 Irregular drain pump
6 Freezing protected
8 Irregular outdoor unit
9 NO irregular
(Refer to next page in detail)
(5) Push the POWER ON/OFF button and
cancel the test run.
(6) After completing a test run, be sure to
turn the adjusting switch back to "Nrm".
For operations marked " ", point the transmitter to the wireless
receiver, and make sure that you will hear a short beep from the
receiver.
, PK-3FLD , PK-4FLSD
/1 /1
Remove the battery cover on the back side of the
wireless remote controller, display will start flashing
when the "Set" switch is turned on.
For operations marked " ", point the transmitter to
the wireless receiver, and make sure that you will
hear a short beep from the receiver.
˚C
AM
PM
AM
PM
NOT AVAILABLE
ON / OFF
MODE
CLOCK
FAN
VANE STOP START
HR MIN.
29
]
/1
Turn the adjusting switch to "SET"
Reset
After refiling batteries.
Press the reset button.
Nrm Set
Display will start flashing
ON / OFF