E7
Senville
Mode Conflict or Indoor Unit/Outdoor Unit Mismatch
Indoor unit displays E7; system may not start or may run only in limited modes.
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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
Incorrect indoor unit model paired with outdoor unit, Incorrect DIP switch or jumper settings on PCB, Faulty indoor PCB configuration memory, Wiring errors causing mode conflict
How to Fix / Troubleshooting
Safety: Disconnect power before accessing control boards.
- Step 1 – Confirm model compatibility: Check that the Senville indoor and outdoor model numbers are designed to work together (per Senville documentation).
- Step 2 – Inspect DIP switches/jumpers: On the indoor PCB, locate any DIP switches or jumpers used for capacity or configuration. Verify they match the installation manual for your model.
- Step 3 – Reset power: After correcting any settings, power cycle the system for at least 5 minutes to clear the error.
- Step 4 – Check wiring: Ensure no cross-connection between power and signal terminals that could confuse the control logic.
- Step 5 – PCB replacement: If configuration is correct and E7 persists, the indoor PCB may have corrupted memory and should be replaced.
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Repair Difficulty
Hard
4/5
Required Part
Indoor Main Control Board (PCB)
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