--- title: "XO flashing speed light: Power Boost is running" description: "What LED flashing (Power Boost) means on XO flashing speed light: Power Boost is runnings, what to check before booking, and when it is not a failure at all." url: "https://rangehooderepair.center/error-codes/xo-power-boost-flashing/" --- # XO flashing speed light: Power Boost is running Holding button 3 for two seconds starts Power Boost, a speed above high. ## What LED flashing (Power Boost) actually means. Holding button 3 for two seconds starts Power Boost, a speed above high. The LED flashes while it runs, and when the time is up the blower goes back to the speed it had before; the XOB and XOT hoods run it for six minutes, the XOI inserts and the ceiling vent for ten. XO range hood display · also shown as button 3 blinking What to do when LED flashing (Power Boost) shows on the range hood ### Kind of code Mode, not a failure The hood is doing something it was told to do, not wearing out: a delay-off timer that keeps the blower running for some minutes after the burners go off, a heat sentry that starts the fan by itself when it senses a hot pan, a Sabbath setting that locks the keys and dims the lights, or a link to the cooking surface that sets the speed on its own. No part is needed; a key sequence from the manual, or simply waiting, ends it. ### Usually leads to No repair Let Power Boost run out, or press button 3 to stop it early. ### Shows up as Reading a Range Hood Error Code or Blinking Light A range hood error code may appear as letters and numbers on a display, a light that blinks in a pattern, a filter reminder that will not clear, or a beep with the fan refusing to start. ### Make XO XO range hoods are repaired on a home call, and a cold draft through the hood or a sluggish fan are both good reasons to book. ### Source XO XOB wall mount hoods manual (XOB24SC to XOB42SC) XO XOB and XOT hoods: six minutes. XOI22SC/XOI28SC inserts and XOCEILING vents: ten minutes. Most models listing Power Boost on their spec sheet share it. ## Before you book, in this order. Each step comes from XO's own guidance for LED flashing (Power Boost) on its range hoods. Follow it to the end: the last card says whether this is a visit. 01 Let Power Boost run out, or press button 3 to stop it early. 02 Use it only while you need the extra draw; the hood returns to your last speed afterward. 03 If the LED flashes but the fan gets no louder, book a visit to check the blower and board. ### Cleared? The code is gone and the blower pulls steam up on every speed again without a new part. If it returns this week, or the filter reminder keeps coming back right after a cleaning, mention it in the booking. ### What not to do The flashing LED is a timer indicator, not a warning. On a hood whose Code Compliance Control was set to 395 CFM, Power Boost is switched off and will not start. ## What you may notice with it. The range hood problems LED flashing (Power Boost) tends to arrive with. Answer these at the range hood before anyone is booked. [All problems](https://rangehooderepair.center/problems/) Before you call ### [Reading a Range Hood Error Code or Blinking Light](https://rangehooderepair.center/problems/range-hood-error-code/) [All 7 causes, cheapest first](https://rangehooderepair.center/problems/range-hood-error-code/) It also comes with - [**Range Hood Fan Stuck on One Speed**](https://rangehooderepair.center/problems/range-hood-stuck-on-one-speed/) Problem ### Reading a Range Hood Error Code or Blinking Light 7 causes, cheapest first No repair indicated ## Nothing to repair. The hood is doing something it was told to do, not wearing out: a delay-off timer that keeps the blower running for some minutes after the burners go off, a heat sentry that starts the fan by itself when it senses a hot pan, a Sabbath setting that locks the keys and dims the lights, or a link to the cooking surface that sets the speed on its own. No part is needed; a key sequence from the manual, or simply waiting, ends it. [How to read what your range hood is telling you](https://rangehooderepair.center/problems/range-hood-error-code/) ## XO range hoods. XO range hoods are repaired on a home call, and a cold draft through the hood or a sluggish fan are both good reasons to book. [XO range hood repair](https://rangehooderepair.center/brands/xo/) More XO codes [Control blinks 3 times](https://rangehooderepair.center/error-codes/xo-control-blinks-3-times/) [Clean Air indicator blinking](https://rangehooderepair.center/error-codes/xo-clean-air-blinking/) [Button blinking for 5 seconds](https://rangehooderepair.center/error-codes/xo-button-blinks-for-remote/) [Display flashing after power loss](https://rangehooderepair.center/error-codes/xo-display-flashing/) Mode, not a failure on other makes [Bertazzoni C](https://rangehooderepair.center/error-codes/bertazzoni-c/) [BEST Fan LED bar flashes slowly and fan speed cannot be changed](https://rangehooderepair.center/error-codes/best-heat-sentry-fan-light-flashing/) [BlueStar Timer icon blinking, blower running](https://rangehooderepair.center/error-codes/bluestar-timer-icon-fan-on/) [Bosch End](https://rangehooderepair.center/error-codes/bosch-end/) [Café Low, Med and High LEDs rolling blink](https://rangehooderepair.center/error-codes/cafe-low-med-high-rolling-blink/) [Dacor Timer LED blinking](https://rangehooderepair.center/error-codes/dacor-timer-led-blinking/) [Elica Snd](https://rangehooderepair.center/error-codes/elica-snd/) [Faber Intensive speed drops back after 6 or 10 minutes](https://rangehooderepair.center/error-codes/faber-intensive-speed-timer/) [All 78 codes of this kind](https://rangehooderepair.center/error-codes/#family-mode) XO builds this ### Wall-mount range hood The chimney hood fixed to a bare stretch of wall above the burners, its canopy catching the rising smoke while a telescoping cover hides the duct that climbs to the ceiling. XO builds this ### Under-cabinet range hood The slim hood screwed to the bottom of the wall cabinet over the burners, venting up through that cabinet or back through the wall, or cleaning the air and returning it to the room. XO builds this ### Island range hood The hood that hangs from the ceiling over burners set into a kitchen island, open on all four sides, with its duct and wiring hidden inside a chimney that drops from above. ## In XO's own words > press BUTTON 3 for two seconds and it will be activated for 6 minutes after which it will return to the previously set speed. [XO XOB wall mount hoods manual (XOB24SC to XOB42SC)](https://images.salsify.com/image/upload/s--aLScG3pT--/akbhducdratzqi0z82py.pdf) [XO XOB wall mount hoods manual (XOB24SC to XOB42SC)](https://images.salsify.com/image/upload/s--aLScG3pT--/akbhducdratzqi0z82py.pdf) [XO XOI22SC / XOI28SC insert manual](https://images.salsify.com/image/upload/s--2zow-_n2--/st1jqdprvygrxejq3kle.pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. XO XOB and XOT hoods: six minutes. XOI22SC/XOI28SC inserts and XOCEILING vents: ten minutes. Most models listing Power Boost on their spec sheet share it. ## XO LED flashing (Power Boost) range hood repair, where we come out. The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered. 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Let Power Boost run out, or press button 3 to stop it early. ### Why won't Power Boost start on my XO hood? If the hood was set to 395 CFM with Code Compliance Control, Power Boost was disabled at the same time. ### How long does Power Boost last on an XO insert? Ten minutes on the XOI22SC and XOI28SC inserts, six minutes on XOB and XOT hoods. ### Can I cut Power Boost short on my XO? Yes, press button 3 again and it returns to high speed. --- **[Read on the site: XO flashing speed light: Power Boost is running](https://rangehooderepair.center/error-codes/xo-power-boost-flashing/)** **[Book a visit with RangeHoodeRepair.center](https://rangehooderepair.center/schedule/)**