Samsung AM080KXMDFH/TC - Page 76

Troubleshooting
4-34 Samsung Electronics
■ Error due to overheated IPM of Fan2. (E-355) / Error due to overheated IPM of Fan1. (E-455)
Outdoor unit Display E-355 / E-455
Judgement Method •IPMinternaltemperaturemorethan85°C
Cause of problem
•HeatsinkandIPMassemblydefective.
•Defectiveheatsinkcooling.
Power Off
Did check the foreign
objects between the
heat sink pin?
Yes
No
Is the bolt of the heat
sink fully tightened?
Did check the foreign
objects between the
heat sink and IPM?
Yes
Tighten Bolt
No
Remove foreign objects
*Cold heat sink assembly defect occurs.
Remove foreign objects and apply the heat sink
grease and then reassembly
Complete
Yes
No