F0
Hisense
General Sensor Fault / Communication Error
Dehumidifier displays F0 and will not start a dehumidifying cycle.
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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
Any of the NTC sensors out of range, Loose sensor harness connector, Damaged wiring between sensors and PCB, Main PCB sensor input failure
How to Fix / Troubleshooting
Safety first: Unplug the unit before opening any panels.
- Power reset: Unplug for 10–15 minutes and restart. If F0 returns, proceed.
- Inspect all sensors: Locate the ambient temperature sensor, evaporator sensor, and humidity sensor. Ensure each is properly mounted and connected.
- Check harness connections: On the main PCB, reseat all small sensor connectors. Look for bent pins or corrosion.
- Visual wiring check: Follow sensor wires for any signs of pinching, cuts, or rodent damage.
- Replace suspect sensor: If one sensor appears damaged or tests open/short, replace it with the correct Hisense part.
- Control board replacement: If all sensors and wiring are good but F0 persists, the main control board is likely faulty and should be replaced.
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Repair Difficulty
Medium
3/5
Required Part
Main Control Board (PCB)
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