E7
Camry
Internal EEPROM / Control Memory Error
Dehumidifier displays E7 and will not run the fan or compressor
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Corrupted firmware on main PCB, Failed EEPROM IC, Power surge damage to control board
How to Fix / Troubleshooting
Safety: Unplug the unit before any disassembly.
Steps:
- 1. Hard reset: Unplug the dehumidifier for at least 15 minutes to allow capacitors to discharge. Plug back in and check if E7 clears.
- 2. Check power quality: Ensure the outlet provides stable voltage within the range specified on the Camry rating label. Avoid using undersized extension cords.
- 3. Inspect main PCB: Remove the cover to access the main control PCB. Look for obvious damage such as burnt areas or cracked components.
- 4. Replace main control PCB: If E7 persists and there is no visible wiring issue, the internal memory or microcontroller is likely faulty. Replace the Camry main control PCB with an exact match.
Warning: Board-level chip replacement or firmware reprogramming is not recommended for DIY; replacing the entire board is the standard repair.
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Repair Difficulty
Hard
4/5
Required Part
Main Control PCB
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