Mitsubishi Heavy Industries SRK100VNXWZRF Service Manual page 82

Error code
None
Remote control:
1. Applicable model
All models
2. Error detection method
3. Condition of error displayed
4. Presumable cause
• Remote control wire
breakage/short-circuit
• Defective remote control
• Malfunction by noise
• Broken harness
• Faulty indoor unit control PCB
• Faulty interface kit
Note:
RUN light TIMER light
Indoor
display
– –
Green LED Red LED
Outdoor unit
control PCB
Keeps flashing Stays OFF
5. Troubleshooting
Diagnosis
loose connection of remote
control wire broken or
Disconnect remote
higher detected between X-Y
of interface kit terminal
connecting wires.
higher detected between X-Y
of indoor unit terminal
81
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Content
Power source system error
(Power source to remote control)
Is there any
YES
control wires?
NO
Is remote
YES
short-circuited?
NO
control wires.
Is DC15V or
YES
block?
NO
Disconnect
Is DC15V or
YES
block?
NO
-
'22 • PAC-SM-422
Countermeasure
Correct it. ➞ Insert
connector securely.
Replace wires.
Replace remote control.
Replace interface kit.
Defective indoor unit control
PCB➞Replace.