First Alert

3 published entries

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HVAC

Equipment covered

Smoke and CO alarms
HVAC

Documented codes

Smoke and CO alarms 3

CUATRO-PITIDOS-COFirst Alert four beeps on CO alarm: carbon monoxide dangerCritical· HVAC CINCO-CHIRRIDOS-MINUTOFirst Alert five chirps on smoke or CO alarm: end of life warningHigh· HVAC TRES-CHIRRIDOS-MINUTOFirst Alert three chirps on smoke or CO alarm: malfunction alertHigh· HVAC