F8
Senville
High Discharge Temperature Protection
Indoor unit displays F8; unit may stop during high load or high ambient conditions.
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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
Dirty indoor or outdoor coils restricting heat transfer, Low refrigerant charge causing superheat, Blocked outdoor airflow (obstructions around unit), Failing compressor or stuck expansion valve
How to Fix / Troubleshooting
Safety: Turn off power before cleaning coils or working near the fan.
- Step 1 – Clean indoor filters and coil: Wash filters and gently vacuum the indoor coil fins. Do not bend fins.
- Step 2 – Clean outdoor coil: Remove debris from around the outdoor Senville unit. Use a garden hose to rinse the coil from inside out (power OFF). Avoid high-pressure washers.
- Step 3 – Check clearances: Ensure at least the manufacturer-recommended clearance (often 12–24 inches) around the outdoor unit for airflow.
- Step 4 – Verify fan operation: Confirm both indoor and outdoor fans run at appropriate speeds.
- Step 5 – Call technician if persistent: If F8 continues, a technician should check refrigerant charge and expansion device operation.
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Repair Difficulty
Medium
3/5
Required Part
Outdoor Condenser Coil
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