E14
Toshiba
Compressor Start Failure / Inverter Module Error
Unit shows E14; compressor does not start or stops quickly.
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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
Failed inverter IPM (Intelligent Power Module), Shorted compressor windings, Loose compressor terminal connections, DC bus over/under-voltage
How to Fix / Troubleshooting
Safety first: This fault involves high-voltage inverter electronics. Disconnect power and do not touch the inverter board capacitors until discharged. Only qualified personnel should perform detailed tests.
- Step 1 – Visual inspection: Remove the outdoor cover and inspect the inverter PCB for burnt components, cracked solder joints, or bulging capacitors.
- Step 2 – Check compressor terminals: With power off, remove the compressor terminal cover and ensure all spade connectors are tight and not burnt.
- Step 3 – Insulation test (technician): A technician should perform a megohm test between compressor windings and ground to rule out a short.
- Step 4 – Replace inverter PCB: If the compressor tests good but E14 persists, the inverter power module/PCB usually must be replaced with the correct Toshiba part.
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Repair Difficulty
Professional Required
5/5
Required Part
Outdoor Inverter Power PCB
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