Troubleshooting
Samsung Electronics 245
4-4-15 Case study – E455 (Fan IPM overheat error)
- Problem : system failure by E455
- Condition : Discharge guide duct 20m with motorized damper
- Trouble shooting
- Action : S-net pro data check & back up
Outdoor unit display
(FAN1 PBA)
(FAN2 PBA)
Judgment Method ∙ IPM internal temperature more than 85°C (E455, E355)
Cause of problem
∙ Heat sink and IPM assembly defective.
∙ Defective heat sink cooling
Fan PBA and heat sink
Heat sink
4-4 Case study for trouble shoots (cont.)
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