Troubleshoot power and connection issues when the screen doesn’t turn on.

<h1 data-start="525" data-end="594" id="isPasted">1&#xFF09;If both the screen and ambient lights are not turning on</h1>This typically indicates a power-related problem, such as:<ul data-start="659" data-end="811"><li data-start="659" data-end="703" style="font-size: 16px; font-family: Inter;">An unstable or insufficient power supply</li><li data-start="704" data-end="750" style="font-size: 16px; font-family: Inter;">A loose or faulty power adapter connection</li><li data-start="751" data-end="811" style="font-size: 16px; font-family: Inter;">The device not receiving enough current to boot properly</li></ul><h3 data-start="813" data-end="833" id="what-to-try">What to try:</h3><ol data-start="834" data-end="1039"><li data-start="834" data-end="876" style="font-size: 16px; font-family: Inter;">Power off the machine completely.</li><li data-start="877" data-end="948" style="font-size: 16px; font-family: Inter;">Disconnect the power adapter from both the machine and the outlet.</li><li data-start="949" data-end="974" style="font-size: 16px; font-family: Inter;">Wait for 30 seconds.</li><li data-start="975" data-end="1039" style="font-size: 16px; font-family: Inter;">Reconnect the power adapter securely and restart the machine.</li></ol>If the machine still does not power on, the issue is likely related to the adapter or internal power module. In this case, please contact <a data-start="1183" data-end="1200" rel="noopener">support@igulu.com</a> for assistance and further diagnostics.<h1 data-start="1249" data-end="1324" id="isPasted">2&#xFF09;If the ambient lights are on but the screen is not lighting up</h1>This usually means the device is powered but the&#xA0;screen module itself is malfunctioning. Common causes include:<ul data-start="1444" data-end="1662"><li data-start="1444" data-end="1512" style="font-size: 16px; font-family: Inter;">Liquid leakage from the dispensing tube entering the screen area</li><li data-start="1513" data-end="1563" style="font-size: 16px; font-family: Inter;">Damage caused by improper clamping of the tube</li><li data-start="1564" data-end="1627" style="font-size: 16px; font-family: Inter;">A failed or incomplete firmware update freezing the display</li><li data-start="1628" data-end="1662" style="font-size: 16px; font-family: Inter;">Screen module hardware failure</li></ul><h3 data-start="1664" data-end="1683" id="what-to-do">What to do:</h3>If the issue is isolated to the screen, the display module can be replaced. Our support team can provide:<ul data-start="1793" data-end="1900"><li data-start="1793" data-end="1828" style="font-size: 16px; font-family: Inter;">A replacement screen module</li><li data-start="1829" data-end="1900" style="font-size: 16px; font-family: Inter;">A step-by-step video guide</li></ul>Please contact <a data-start="1919" data-end="1936" rel="noopener">support@igulu.com</a> for assistance.

What causes an iGulu F1 machine screen not to light up and how can it be fixed?

Fix stalled firmware updates caused by Wi-Fi or system interruptions.

<div data-page-id="RlFZdp98XoatmsxTjBXcQDuznab" data-lark-html-role="root" data-docx-has-block-data="true" id="isPasted">Optimize the Network Environment:<ul><li data-list="bullet" style="font-family: Inter; font-size: 16px;">Move the device within 5 meters of the router, avoiding walls or metal obstructions.</li><li data-list="bullet" style="font-family: Inter; font-size: 16px;">Disable the router&#x2019;s QoS (Quality of Service) bandwidth limiting feature if enabled, and prioritize bandwidth for the upgrading device.</li></ul>&#xA0;Use a Mobile Hotspot Instead of Wi-Fi:<ul><li data-list="bullet" style="font-family: Inter; font-size: 16px;">Turn on your mobile hotspot and ensure the signal strength is at least 3 bars.</li><li data-list="bullet" style="font-family: Inter; font-size: 16px;">After connecting to the hotspot, go to the device settings and tap &quot;Upgrade&quot; again.</li></ul>Note&#xFF1A;For cross-version upgrades (e.g., from v2.1.0 &#x2192; v2.5.9 &#x2192; v2.7.4), multiple upgrade steps may be required (2&#x2013;3 times), and download times may be longer than usual.</div>

Why is my firmware upgrade stuck?

Learn what to do when the cooling system fails to reach target temperature.

If your machine cannot bring the temperature down, or cooling feels unusually slow, try the steps below before contacting support.<hr data-start="275" data-end="278"><h2 data-start="280" data-end="307" id="1update-your-firmware">1.Update your firmware</h2>Make sure your brewer is running the latest firmware. Cooling performance relies on updated temperature-control logic, and newer versions improve compressor stability.<hr data-start="480" data-end="483"><h2 data-start="485" data-end="535" id="2restart-cooling-and-allow-time-to-stabilize">2.Restart cooling and allow time to stabilize</h2>End the current program, wait a few seconds, then restart&#xA0;Cool Mode. After restarting, keep the machine closed and allow&#xA0;up to 4 hours for the temperature to drop. Cooling may take longer if the keg liquid is warm, the machine was recently moved, or the room temperature is high.<hr data-start="830" data-end="833"><h2 data-start="835" data-end="879" id="still-not-cooling-were-here-to-help">Still not cooling? We&#x2019;re here to help</h2>If the temperature does not decrease after restarting and waiting, please contact us at:&#xA0;<a data-start="976" data-end="993" rel="noopener">support@igulu.com</a>Include your machine model, firmware version, and a photo or video of the cooling screen so we can assist you quickly.

Why isn’t my machine cooling properly?

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iGulu

Device Issues

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How to unbox my iGulu F1/S1?

First Brew

How to upgrade firmware?

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