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Check
SiBE12-519
176
Service Diagnosis
5.1.8
Inverter Units Refrigerant System Check
Check No.11
5.1.9
Capacitor Voltage Check
Check No.12
Before this checking, be sure to check the main circuit for short-circuit.
Checking the capacitor voltage
z
With the circuit breaker still on, measure the voltage according to the drawing. Be careful
never to touch any live parts.
Refrigerant system check
Check for gas leaks.
See the section on insufficient gas
detection.
Conduct the check after operating the
equipment for a sufficient length of time.
Correct the problem.
Four way valve defective.
Replace the four way valve.
Conduct vacuum drying.
Replace the refrigerant.
Is
the discharge
thermister disconnected from
the holder?
(R3050)
YES
YES
Is any moisture
found in sight glass?
NO
NO
Is the temperature
of the four way valve suction pipe
abnormaly high?
YES
NO
Use the tester
in the DC range.
Diode Bridge (DB1)
(back side of the PCB)
LED A
(back side of the slit)
(R3051)
Summary of Contents for 2MKS40DVMB
Page 10: ...SiBE12 519 List of Functions 1 Part 1 List of Functions 1 Cooling Only 2 2 Heat Pump 4 ...
Page 15: ...Heat Pump SiBE12 519 6 List of Functions ...
Page 29: ...Heat Pump SiBE12 519 20 Specifications ...
Page 135: ...Instruction SiBE12 519 126 System Configuration ...
Page 211: ...Outdoor Unit SiBE12 519 202 Removal Procedure ...