Friedrich MR09C1H Air Conditioner User Manual


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Start
Measure voltage at the
Test 10 position as
shown in the diagram
with a voltmeter
Value jumping
Measure voltage at the
Test 15 position as
shown in the diagram
with a voltmeter
Value jumping
Measure voltage at the
Test 11 position as
shown in the diagram
with a voltmeter
Value jumping
Measure voltage at the
Test 12 position as
shown in the diagram
with a voltmeter
Value jumping
The communication
circuit of the outdoor
unit is normal
End
Fault with
outdoor unit
Troubleshooting
62
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