Self-Diagnosis Function - Heat Controller B-MMC09FA-1 Service Manual

Troubleshooting Guide

Self-diagnosis Function

I Error Indicator
• The function is to self-diagnoisis airconditioner and express the troubles identifically if there is any trouble.
• Error mark is ON/OFF for the operation LED of evaporator body in the same manner as the following table.
• If more than two troubles occur simultaneously, primarily the highest trouble fo error code is expressed.
• After error occurrence, if error is released, error LED is also released simultaneously.
• To operate again on the occurrence of error code, be sure to turn off the power and then turn on.
• Having or not of error code is different from Model.
Indoor Error
Error code
00 No Error
01 Indoor Room Thermistor Error
02 Indoor In-Piping Error
05 Communication Error between In and Out
06 Indoor Out-Piping Error
07 Differnt mode operation
10 Indoor fan motor locked error
Outdoor Error
Error code
33 D-Pipe High(Normal)
44 Outdoor Air Thermistor Error(Open/Short)
45 Cond Pipe Thermistor Error(Open/Short)
47 Const. D-Pipe Thermistor Error(Open/Short)
51 Capcity Error(High/Low)
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Only for training and service purposes
LED1 LED2
Description
Description
MPS Variable LED1
1 time
2 times
5 times
6 times
7 times
MPS Variable LED1(Red)
3 times
4 times
4 times
4 times
5 times
- 64 -
LED2 Indoor Status
ON
OFF
OFF
OFF
OFF
OFF
1 times OFF
LED2(Green) Indoor Status
3 times OFF
4 times OFF
5 times OFF
7 times OFF
1 times OFF
LGE Internal Use Only