What does 84E mean?
Compressor is locked or not starting.
Common causes
- Failed compressor
- Failed start relay
- Overload protector tripped
- Low refrigerant
Diagnostic & testing steps
- 1. Check start relay - should not rattle when shaken
- 2. Test overload protector
- 3. Test compressor windings: start=10-20 ohms, run=5-10 ohms
- 4. Check for refrigerant leak if compressor runs but no cooling
Tools required
- Multimeter
- 5-in-1 relay tester
OEM parts & part numbers
Start Relay, Overload Protector, Compressor
Part numbers: DA35-00099G, DA34-10003S
Safety warning
⚠️ High voltage - disconnect power before testing
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