Indoor unit blows air but there is a noticeable chemical or burning smell.
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.
Possible Causes
How to Fix / Troubleshooting
Safety first: If you smell burning plastic or see smoke, turn off power immediately at the breaker.
Steps:
- Inspect indoor unit: With power off, remove the cover and look for burnt wiring, discolored connectors, or melted plastic.
- Check outdoor unit: Inspect for similar signs of overheating.
- Ventilate: Open windows to clear any fumes.
Important: Do not continue using the unit until a Bosch technician has inspected and repaired any electrical faults. For mild chemical smells without visible damage, a refrigerant leak test may be required.
Repair Difficulty
Required Part
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