Troubleshooting Guide
Service Manual 111
6) Troubleshooting CH21, CH22
V
+
-
+
-
+
-
21
22
Max. C/T
C/T
Internal circuit
Over current (14A
)
Initial current error
Malfunction of compressor
Blocking of pipe
Low voltage input
Refrigerant, pipe length, blocked, …
Malfunction of current detection circuit.
(Open / Short)
The voltage of “C01N” Is 4.0Vdc(25A)
.
Display
code
Title
Cause of error
Check point & Normal condition
Check Point
1. Check the power source.
2. Check the fan operation is right.
3. Check the current.
4. Check the install condition.
5. Check the internal circuit. (C/T, Diode, Resistor)
Summary of Contents for ABNH186HLAB
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Page 183: ...P No 3828A22009B Printed in Korea ...