Samsung AM053FXMDCH User Manual

Samsung Electronics 73
3-34. Error due to overheat caused by contact failure on IPM of inverter PBA 1. (E-500)
Outdoor unit Display E-500
Judgement Method t*(#5NPEVMFJOUFSOBMUFNQFSBUVSF¡$NPSFUIBO
Cause of problem
t$PPMJOH1JOBOEUIF*(#5KVODUJPOQBSUBTTFNCMZEFGFDUJWF
t3FGSJHFSBOUDPPMJOHIFBUTJOLBOESFGSJHFSBOUQJQJOHBTTFNCMZEFGFDUJWF
t"TTFNCMFECPMUEFGFDUJWF
Both end resistance values of IGBT module pin(8, 9 pin)
Temperature(°C) /5$<PIN> "%<7>
10 9000 2.58
20 6000 2.33
30 4000 2.03
40 3000 1.80
50 2000 1.47
60 1600 1.29
70 1200 1.07
80 750 0.76
90 650 0.68
100 500 0.55
105 450 0.51
110 380 0.44
120 300 0.35
130 250 0.30
100 500 0.55
Power Off
IPM (IGBT) module
pin 8, 9 : Is it normally both end
resistance value?
Did check the
foreign objects between the heat sink
and IPM?
Did properly apply the thermal grease?
Is the bolt of the heat sink fully tightened?
Complete.
Replace Inverter PCB.
Tighten Bolt. (Screw)
Remove foreign objects and apply the thermal
grease and then reassembly.
Apply the thermal grease and then reassembly.
Yes
No
Yes
Yes
Yes
No
No
No

Samsung AM053FXMDCH Specifications

General

Brand	Samsung
Model	AM053FXMDCH
Category	Air Conditioner
Language	English