Pure Enrichment PEHUMIDIF Blinking Red Light: Check the Tank-Cap Seal
On PEHUMIDIF support, a blinking red light points to the tank-cap seal: check that the blue seal ring is installed correctly and is not missing.
MistAire ultrasonic cool-mist model with visible mist, a tank-cap seal diagnostic for a blinking red light, and official descaling guidance.
Choose the observed symptom, light, code, app state, or output problem.
On PEHUMIDIF support, a blinking red light points to the tank-cap seal: check that the blue seal ring is installed correctly and is not missing.
Scale on the ultrasonic disk can reduce mist output. Pure Enrichment recommends cleaning/descaling rather than scraping the disk.
Hard-water minerals can create white dust on this ultrasonic model. Distilled water is optional but can reduce mineral precipitation.
First rule out excessive mist output/room saturation and placement before assuming the tank leaks.
Treat a stale or musty mist smell as a cleaning/water issue first: empty old water, clean the wet parts, rinse, and refill with fresh water.
Hard water can shorten the time between descales. Pure Enrichment recommends rinsing/air-drying between uses and says scale removal may be needed weekly or every other week.