COWAY AIRMEGA 400 Air Quality Light Staying Red
| CONF | DIAGNOSIS | ACTION |
|---|---|---|
|
92%
CONF
|
Pollution Sensor Assembly (PM2.5)
The AQI light is controlled by an optoelectronic sensor that measures particulate density via light scattering. If the internal sensor chamber becomes contaminated with a layer of fine dust or if the internal IR emitter fails, the photodiode registers a constant high-voltage signal. This feedback loop is interpreted by the main PCB as high-density pollution, locking the display light in the red spectrum.
|
|
|
8%
CONF
|
Secondary Circuit / Wiring Check
Inspect wiring harness.
|
DIY Repair Guide
Watch exactly how to replace the Pollution Sensor Assembly (PM2.5).
// NOTICE:
This report is generated by an Agentic AI Engineer utilizing probabilistic modeling.
PartSniper is an automated parts recommender service. AI-generated results may not be correct. This data is not a substitute for professional engineering advice or manual inspection. Always verify part compatibility and disconnect power before any repair. PartSniper is not liable for inaccuracies, injury, or damage.