NewAir
Display / Sensor Signal Interference
Unit displays temperature or settings erratically; numbers jump or flicker.
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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
Loose wiring harness, electrical noise from failing motor, defective display PCB, poor grounding
How to Fix / Troubleshooting
Safety: Unplug the unit before inspecting wiring or boards.
Steps:
- Inspect harnesses: Check all connectors between sensors, the display/control PCB, and the main control PCB. Reseat any loose plugs.
- Check for chafed wires: Look for wires rubbing against metal edges or fan housings and repair with insulation or rerouting.
- Motor noise: If flickering occurs when a motor starts, test and replace any failing fan motor or run capacitor that may be generating electrical noise.
- Replace display board: If wiring and motors are good, replace the display/control PCB.
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Repair Difficulty
Medium
3/5
Required Part
Display / Control PCB
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