Troubleshooting - Mitsubishi Electric SLZ-KA25VA.TH Technical & Service Manual

Mitsubishi ilmalämpöpumput korjaa ja huoltaa: Jäähdytinpalvelu RefGroup Oy (pääkaupunkiseutu)
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TROUBLESHOOTING

6-1. Cautions on troubleshooting
(1) Before troubleshooting, check the followings:
1Check the power supply voltage.
2Check the indoor/outdoor connecting wire for mis-wiring.
(2) Take care the followings during servicing.
1 Before servicing the air conditioner, be sure to first turn off the remote controller to stop the main unit, and then turn
off the breaker.
2 When removing the indoor controller board, hold the edge of the board with care NOT to apply stress on the
components.
3 When connecting or disconnecting the connectors, hold the housing of the connector. DO NOT pull the lead wires.
6-2. Self-check
6-2-1. Wired remote controller
B E D
˚C
˚C
SIMPLE
TEMP. ON/OFF
C
MENU ON/OFF
BACK MONITOR/SET DAY
PAR-21MAA CLOCK OPERATION
A
A CHECK button
B Refrigerant address
C TEMP. button
D IC:Indoor unit
OC:Outdoor unit
E Check code
6-2-2. Wireless remote controller
h
ON/OFF
TOO TOO
WARM COOL
The following indication
applies regardless of shape
.
of the indicator
1 Turn ON the power.
2 During pressing both the MODE SELECT button and TOO COOL button on the
remote controller at the same time, press the RESET button.
3 At first, release the RESET button.
4 And release the other two buttons since all LCD in operation display section of the
remote controller is displayed after 3 seconds.
5 Transmit the signal of remote controller, pressing OPERATE/STOP (ON/OFF)
button on the remote controller
(The above procedure allows OPERATION INDICATOR lamp to indicate the fail-
ure-mode.)
6 Transmit the signal of remote controller, pressing OPERATE/STOP (ON/OFF)
button to stop the self-check.
FILTER
CHECK TEST
CLEAR
1 Turn on the power.
2 Press the [CHECK] button twice.
3 Set refrigerant address with [TEMP] button if system control is used.
4 Press the [ON/OFF] button to stop the self-check.
OPERATION INDICATOR lamp
.
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