Mitsubishi SRK18CL-3 User Manual

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27
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'12 • SRK-T-125
(4) Troubleshooting procedure (If the air conditioner runs)
NO
YES
below
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Indoor unit display panel
ON
ON
TIMER
light
RUN
light
(5) Self-diagnosis table
1 time
flash
2 times
flash
When a heat exchanger sensor 1 wire disconnection is detected while operation is
stopped. (If a temperature of –28ºC or lower is detected for 15 seconds, it is judged
that the wire is disconnected.) (Not displayed during operation.)
When a room temperature sensor wire disconnection is detected while operation is
stopped. (If a temperature of –45ºC or lower is detected for 15 seconds, it is judged
that the wire is disconnected.) (Not displayed during operation.)
• Broken heat exchanger sensor
1 wire, poor connector
connection
• Indoor PCB is faulty
• Broken room temperature
sensor wire, poor connector
connection
• Indoor PCB is faulty
Heat exchanger
sensor 1 error
Room
temperature
sensor error
Description
of trouble
Cause Display (flashing) condition
ON
6 times
flash
When conditions for turning the indoor unit’s fan motor on exist during air conditioner
operation, an indoor unit fan motor speed of 300 rpm
• Defective fan motor, poor
connector connection
Indoor fan
motor error
or lower is measured for 30 seconds
When there is an emer gency stop caused by trouble in the outdoor unit, or the input
current value is found to be lower than the set value. (The air conditioner stops.)
• Broken compressor wire
• Compressor blockage
• 52C relay in indoor PCB is faulty
2 times
flash
ON
Trouble of
outdoor unit
or longer. (The air conditioner stops.)

Mitsubishi SRK18CL-3 Specifications

General

Brand	Mitsubishi
Model	SRK18CL-3
Category	Air Conditioner
Language	English