--- title: "Weber E4: the controller lost contact with the grill" description: "What E4 means on Weber E4: the controller lost contact with the grills, what to check before booking, and when it is not a failure at all." url: "https://bbqgrillrepair.center/error-codes/weber-e4/" --- # Weber E4: the controller lost contact with the grill On the Searwood the display clips onto the hopper and connects through a USB-C plug at its back. ## What E4 actually means. On the Searwood the display clips onto the hopper and connects through a USB-C plug at its back. E4 shows when the board and the display lose their link, which can be as simple as a plug that has been knocked half out or as serious as a failed board. Weber grill display What to do when E4 shows on the grill ### Kind of code Controller and display The controller itself reported trouble, or stopped answering: a display that flickers or shows segments missing, buttons that no longer respond after rain got behind the panel, a board whose relays stick, or an app that will not keep its connection. A full power cycle, done as the manual describes with the grill cold, clears a passing glitch; a code that returns, or any sign of water behind the display, means a board or a keypad, and that is a visit. ### Usually leads to Grill lights and electronics repair Hood lights, knob lights, transformers, power supplies and digital displays on a grill that have gone dark, flicker or trip the outlet, found and fixed. ### Shows up as Grill Error Code on a Pellet Controller or Digital Panel A grill error code shows as letters and numbers on a pellet grill controller, a flashing light on a digital control panel, or an alert in the maker's app paired with the grill. ### Make Weber Weber grill calls often come from a flame that dropped low mid-cook; the tech starts at the tank, the hose and the regulator. ### Source Weber Searwood 600 / XL 600 owner's guide (US, 2024), troubleshooting pages Searwood 600 and Searwood XL 600 pellet grills with the Weber Connect digital controller (US owner's guide, 2024). SmokeFire grills use E4 for a communication failure between the controller and the grill. ## Before you book, in this order. Each step comes from Weber's own guidance for E4 on its grills. Follow it to the end: the last card says whether this is a visit. 01 Let the grill shut down and cool fully, then unplug it. 02 Check that the display is seated firmly on the front of the hopper without prying it with tools. 03 Plug back in and start a cook so the controller can run its 30-second check. 04 If E4 stays, book a visit to check the display cable and the circuit board. ### Still there? It usually turns into [grill lights and electronics repair](https://bbqgrillrepair.center/services/grill-lights-and-electronics-repair/). Book with the code and the model number. ### What not to do E4 is not a Wi-Fi or Bluetooth problem with the Weber Connect app; an app that will not pair shows no E-code on the grill. It is also not the Grill ID error, which Weber numbers E16. ## What you may notice with it. The grill problems E4 tends to arrive with. Answer these at the grill before anyone is booked. [All problems](https://bbqgrillrepair.center/problems/) Before you call ### [Grill Error Code on a Pellet Controller or Digital Panel](https://bbqgrillrepair.center/problems/grill-error-code/) [All 7 causes, cheapest first](https://bbqgrillrepair.center/problems/grill-error-code/) It also comes with - [**Grill Lights Not Working: Dark Knob Lights and Hood Lamps**](https://bbqgrillrepair.center/problems/grill-lights-not-working/) Problem ### Grill Error Code on a Pellet Controller or Digital Panel 7 causes, cheapest first Where E4 usually leads ## Grill lights and electronics repair. **Hood lights, knob lights, transformer, power supply, switches and harness · low to moderate.** Book a visit [What the job involves](https://bbqgrillrepair.center/services/grill-lights-and-electronics-repair/) ## Weber grills. Weber grill calls often come from a flame that dropped low mid-cook; the tech starts at the tank, the hose and the regulator. [Weber grill repair](https://bbqgrillrepair.center/brands/weber/) More Weber codes [E1](https://bbqgrillrepair.center/error-codes/weber-e1/) [E2](https://bbqgrillrepair.center/error-codes/weber-e2/) [E3](https://bbqgrillrepair.center/error-codes/weber-e3/) [E5](https://bbqgrillrepair.center/error-codes/weber-e5/) [E6](https://bbqgrillrepair.center/error-codes/weber-e6/) [E7](https://bbqgrillrepair.center/error-codes/weber-e7/) [E8](https://bbqgrillrepair.center/error-codes/weber-e8/) [E9](https://bbqgrillrepair.center/error-codes/weber-e9/) [E10](https://bbqgrillrepair.center/error-codes/weber-e10/) [E11](https://bbqgrillrepair.center/error-codes/weber-e11/) [E17](https://bbqgrillrepair.center/error-codes/weber-e17/) [E18](https://bbqgrillrepair.center/error-codes/weber-e18/) [All 15 Weber codes](https://bbqgrillrepair.center/error-codes/#codes-weber) Controller and display on other makes [Fire Magic OH](https://bbqgrillrepair.center/error-codes/fire-magic-oh/) [Lynx Burner N turned on unexpectedly](https://bbqgrillrepair.center/error-codes/lynx-burner-turned-on-unexpectedly/) [All 7 codes of this kind](https://bbqgrillrepair.center/error-codes/#family-board) Weber builds this ### Built-in gas grill A stainless grill head dropped into a masonry or steel island, fed by a tank or the house gas line, with its burners, knobs and lid working in open weather. Weber builds this ### Freestanding gas grill A gas grill on its own cart with wheels, side shelves and a propane tank below, or a hose to a house gas outlet, rolled into place on the patio. Weber builds this ### Infrared grill Grills that cook with radiant heat: ceramic or mesh infrared burners, sear stations beside the main burners, and radiant glass or emitter plates over a gas flame. ## In Weber's own words > E4 - Communication Error [Weber Searwood 600 / XL 600 owner's guide (US, 2024), troubleshooting pages](https://digital-assets.weber.com/documents/19977_8651007_121624_WEB.pdf) [Weber Searwood 600 / XL 600 owner's guide (US, 2024), troubleshooting pages](https://digital-assets.weber.com/documents/19977_8651007_121624_WEB.pdf) [Weber Searwood 600 / XL 600 owner's guide (US, 2024), troubleshooting pages](https://digital-assets.weber.com/documents/19977_8651007_121624_WEB.pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Searwood 600 and Searwood XL 600 pellet grills with the Weber Connect digital controller (US owner's guide, 2024). SmokeFire grills use E4 for a communication failure between the controller and the grill. ## Weber E4 grill 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 the grill shut down and cool fully, then unplug it. If it comes back, it needs a visit. ### Does E4 on my Weber mean the app has disconnected? No. E4 is about the display and the grill's own board. App pairing trouble is handled through Bluetooth and Wi-Fi settings and does not raise an E-code. ### Can a cover or a bump cause E4 on a Searwood? It can if the display has been pushed partly off its plug. Weber's first step is to check that USB-C connection behind the display. ### Will a new display fix E4 on my Weber? Only if the display is the part that failed. A loose cable or a board problem shows the same code, so both are checked before anything is ordered. --- **[Read on the site: Weber E4: the controller lost contact with the grill](https://bbqgrillrepair.center/error-codes/weber-e4/)** **[Book a visit with BBQGrillRepair.center](https://bbqgrillrepair.center/schedule/)**