{"id":828,"date":"2026-10-26T09:42:31","date_gmt":"2026-10-26T08:42:31","guid":{"rendered":"https:\/\/reflash.pl\/usterki\/bosch-oven-stuck-on-logo-systemmaster\/"},"modified":"2026-10-30T13:34:52","modified_gmt":"2026-10-30T12:34:52","slug":"bosch-oven-stuck-on-logo-systemmaster","status":"publish","type":"repario_usterka","link":"https:\/\/reflash.pl\/en\/usterki\/bosch-oven-stuck-on-logo-systemmaster\/","title":{"rendered":"Bosch oven stuck on the Bosch logo and not responding \u2013 faulty SystemMaster module (HBG7741B1 and others)"},"content":{"rendered":"<p>More and more owners of <strong>Bosch Serie 8<\/strong> ovens \u2013 including compact, microwave and steam models \u2013 with a touch display and control ring \u2013 including the <strong>HBG7741B1<\/strong> and <strong>HBG7242B1<\/strong> \u2013 report the same fault. The oven worked fine, then one day it powers up, shows the <strong>Bosch logo<\/strong> and stops there. The touch panel does not respond, no function can be selected, and often <strong>the oven light does not come on<\/strong> when you open the door. There is no error code.<\/p>\n<h2>Typical symptoms<\/h2>\n<ul>\n<li>after power-up the display shows the Bosch logo and freezes,<\/li>\n<li>the touch controls do not work at all,<\/li>\n<li>the cavity light stays off and the fan does not run,<\/li>\n<li>disconnecting the power \u2013 even for an hour \u2013 changes nothing; the logo comes back,<\/li>\n<li><strong>early warning:<\/strong> days or weeks before, the panel reacts more and more slowly and the start-up logo stays on screen longer.<\/li>\n<\/ul>\n<h2>The cause: a SystemMaster software fault<\/h2>\n<p>In these ovens the whole appliance is controlled by an electronic module called the <strong>SystemMaster<\/strong>. It starts the display and the touch panel and controls the heating elements, fan, light, sensors and the Home Connect connection.<\/p>\n<figure class=\"rp-figure\"><img decoding=\"async\" src=\"\/wp-content\/plugins\/repario-core\/kb\/img\/bosch-systemmaster-9001797518.jpg\" alt=\"SystemMaster module from a Bosch oven (board number 9001797518)\" loading=\"lazy\"><figcaption>SystemMaster module from a Bosch oven (board number 9001797518)<\/figcaption><\/figure>\n<p>The fault comes from a <strong>bug in the SystemMaster software<\/strong>. Over time it leaves the module <strong>unable to finish booting<\/strong> \u2013 the display shows the logo, but the rest of the oven receives no commands. That is why neither the touch controls nor the light work, and why a power reset does nothing: the module stops at the same point at every start.<\/p>\n<p>It mainly affects ovens built from roughly <strong>mid-2023 to mid-2024<\/strong> \u2013 their rating plate shows an <strong>FD number from 0306 to 0405<\/strong>. Replacing the touch panel <strong>does not help<\/strong> \u2013 the panel is fine, the problem is in the module.<\/p>\n<h2>SystemMaster repair \u2013 500 PLN (approx. \u20ac115)<\/h2>\n<p>This fault cannot be fixed from the oven itself \u2013 the menu does not start. The module has to be removed and <strong>reprogrammed<\/strong> for your oven&#8217;s E-Nr. Service often suggests replacing the module and the panel \u2013 we <strong>repair your SystemMaster<\/strong> for <strong>500 PLN (approx. \u20ac115)<\/strong>. You can send the module to us by post from anywhere in the EU.<\/p>\n<ul>\n<li>Call us or send a WhatsApp message (we answer in English) \u2013 we confirm whether the symptoms match and tell you how to remove the module from your model.<\/li>\n<li>Send us the SystemMaster module (with the oven disconnected from the mains).<\/li>\n<li>We reprogram the module for your E-Nr, test it and send it back. Once refitted, the oven starts normally \u2013 you only need to set up your favourites again.<\/li>\n<li>After the repair, connect the oven to <strong>Home Connect<\/strong> so it receives software updates and the fault does not come back.<\/li>\n<\/ul>\n<p>If your oven is less than 5 years old, it is worth asking the manufacturer&#8217;s service about this fault first.<\/p>\n<p>Have the <strong>E-Nr<\/strong> and <strong>FD<\/strong> from the rating plate ready (visible on the edge of the oven cavity when the door is open), e.g. <code>HBG7741B1\/01<\/code> \u2013 we use them to check your model.<\/p>\n<div class=\"rp-phone-box\"><div><p class=\"rp-phone-box__lead\">Bosch oven stuck on the logo? Call us or send a WhatsApp message \u2013 tell us the E-Nr and FD from the rating plate.<\/p><p class=\"rp-phone-box__hours\">Mon\u2013Fri 9:00\u201317:00 (CET)<\/p><\/div><div class=\"rp-phone-box__btns\"><a class=\"rp-btn rp-phone-box__btn\" href=\"tel:+48797347025\">Call: +48 797 347 025<\/a><a class=\"rp-btn rp-wa-btn\" href=\"https:\/\/wa.me\/48797347025?text=Dzie%C5%84%20dobry%20%2F%20Hello%21%20Pytanie%20o%20modu%C5%82%20%2F%20Question%20about%20a%20module%3A%20\" target=\"_blank\" rel=\"noopener\"><svg aria-hidden=\"true\" width=\"20\" height=\"20\" viewBox=\"0 0 24 24\" fill=\"currentColor\"><path d=\"M17.472 14.382c-.297-.149-1.758-.867-2.03-.967-.273-.099-.471-.148-.67.15-.197.297-.767.966-.94 1.164-.173.199-.347.223-.644.075-.297-.15-1.255-.463-2.39-1.475-.883-.788-1.48-1.761-1.653-2.059-.173-.297-.018-.458.13-.606.134-.133.298-.347.446-.52.149-.174.198-.298.298-.497.099-.198.05-.371-.025-.52-.075-.149-.669-1.612-.916-2.207-.242-.579-.487-.5-.669-.51-.173-.008-.371-.01-.57-.01-.198 0-.52.074-.792.372-.272.297-1.04 1.016-1.04 2.479 0 1.462 1.065 2.875 1.213 3.074.149.198 2.096 3.2 5.077 4.487.709.306 1.262.489 1.694.625.712.227 1.36.195 1.871.118.571-.085 1.758-.719 2.006-1.413.248-.694.248-1.289.173-1.413-.074-.124-.272-.198-.57-.347m-5.421 7.403h-.004a9.87 9.87 0 0 1-5.031-1.378l-.361-.214-3.741.982.998-3.648-.235-.374a9.86 9.86 0 0 1-1.51-5.26c.001-5.45 4.436-9.884 9.888-9.884 2.64 0 5.122 1.03 6.988 2.898a9.825 9.825 0 0 1 2.893 6.994c-.003 5.45-4.437 9.884-9.885 9.884m8.413-18.297A11.815 11.815 0 0 0 12.05 0C5.495 0 .16 5.335.157 11.892c0 2.096.547 4.142 1.588 5.945L.057 24l6.305-1.654a11.882 11.882 0 0 0 5.683 1.448h.005c6.554 0 11.89-5.335 11.893-11.893a11.821 11.821 0 0 0-3.48-8.413Z\"\/><\/svg> WhatsApp<\/a><\/div><\/div>\n<h2>Summary<\/h2>\n<p>A Bosch oven that freezes on the logo, ignores the touch controls and does not switch on the light most often has a software problem in its <strong>SystemMaster<\/strong> module. Neither a power reset nor a new panel helps \u2013 the module has to be reprogrammed. We do it for 500 PLN (approx. \u20ac115).<\/p>\n<h2>Which models are affected<\/h2>\n<p>Below is the list of Bosch models with a SystemMaster module whose versions (E-Nr) were built within FD 0306\u20130405. Compare it with the <strong>E-Nr<\/strong> on your rating plate \u2013 the full number counts, including the part after the slash.<\/p>\n<h3>Built-in ovens (60 cm)<\/h3>\n<p class=\"rp-enr-head\">Model \u00b7 E-Nr numbers built in FD 0306\u20130405<\/p>\n<ul class=\"rp-enr-list\">\n<li><span class=\"v\">HBA7741B1\/01, HBA7741B1\/D3<\/span><\/li>\n<li><span class=\"v\">HBG7221B1\/01, HBG7221B1\/D3, HBG7221B1\/D8<\/span><\/li>\n<li><span class=\"v\">HBG7221B1S\/01, HBG7221B1S\/D3, HBG7221B1S\/D7<\/span><\/li>\n<li><span class=\"v\">HBG7221B2\/01, HBG7221B2\/D3, HBG7221B2\/D7<\/span><\/li>\n<li><span class=\"v\">HBG7241B1\/01, HBG7241B1\/D3, HBG7241B1\/D7<\/span><\/li>\n<li><span class=\"v\">HBG7241B2\/01, HBG7241B2\/D3, HBG7241B2\/D7<\/span><\/li>\n<li><span class=\"v\">HBG7242B1\/01, HBG7242B1\/D3, HBG7242B1\/D7<\/span><\/li>\n<li><span class=\"v\">HBG7321B1\/01, HBG7321B1\/D3, HBG7321B1\/D7<\/span><\/li>\n<li><span class=\"v\">HBG7321W1\/01, HBG7321W1\/D3, HBG7321W1\/D7<\/span><\/li>\n<li><span class=\"v\">HBG7322B1\/01<\/span><\/li>\n<li><span class=\"v\">HBG7341B1\/01, HBG7341B1\/D3, HBG7341B1\/D7<\/span><\/li>\n<li><span class=\"v\">HBG7341B1A\/01, HBG7341B1A\/D3, HBG7341B1A\/D7<\/span><\/li>\n<li><span class=\"v\">HBG7341B1B\/01, HBG7341B1B\/D4, HBG7341B1B\/D7<\/span><\/li>\n<li><span class=\"v\">HBG7341B1M\/01, HBG7341B1M\/C2, HBG7341B1M\/D3, HBG7341B1M\/D7<\/span><\/li>\n<li><span class=\"v\">HBG7341B2\/01, HBG7341B2\/D3, HBG7341B2\/D7<\/span><\/li>\n<li><span class=\"v\">HBG7341W1\/01, HBG7341W1\/D3, HBG7341W1\/D7<\/span><\/li>\n<li><span class=\"v\">HBG7342B1\/D3, HBG7342B1\/D7<\/span><\/li>\n<li><span class=\"v\">HBG7541B1\/01, HBG7541B1\/D3, HBG7541B1\/D7<\/span><\/li>\n<li><span class=\"v\">HBG7541B1C\/01, HBG7541B1C\/D3<\/span><\/li>\n<li><span class=\"v\">HBG7542B1W\/01, HBG7542B1W\/D7<\/span><\/li>\n<li><span class=\"v\">HBG7721B1\/D3, HBG7721B1\/D8<\/span><\/li>\n<li><span class=\"v\">HBG7721B1A\/01, HBG7721B1A\/C6, HBG7721B1A\/D3<\/span><\/li>\n<li><span class=\"v\">HBG7721B1S\/01, HBG7721B1S\/D3<\/span><\/li>\n<li><span class=\"v\">HBG7721B2\/01<\/span><\/li>\n<li><span class=\"v\">HBG7721W1S\/01, HBG7721W1S\/D3<\/span><\/li>\n<li><span class=\"v\">HBG7722B1\/D3<\/span><\/li>\n<li><span class=\"v\">HBG7722B1S\/01, HBG7722B1S\/D3<\/span><\/li>\n<li><span class=\"v\">HBG7722W1S\/01, HBG7722W1S\/D3<\/span><\/li>\n<li><span class=\"v\">HBG7741B1\/01, HBG7741B1\/D3<\/span><\/li>\n<li><span class=\"v\">HBG7741B1A\/01, HBG7741B1A\/D3<\/span><\/li>\n<li><span class=\"v\">HBG7741B1B\/01, HBG7741B1B\/C5, HBG7741B1B\/D3<\/span><\/li>\n<li><span class=\"v\">HBG7741B2\/C5, HBG7741B2\/D3<\/span><\/li>\n<li><span class=\"v\">HBG7741W1\/01, HBG7741W1\/D3<\/span><\/li>\n<li><span class=\"v\">HBG7742B1\/01, HBG7742B1\/D3, HBG7742B1\/D8<\/span><\/li>\n<li><span class=\"v\">HBG7742B1S\/01, HBG7742B1S\/D3<\/span><\/li>\n<li><span class=\"v\">HBG7742B2\/01, HBG7742B2\/D3<\/span><\/li>\n<li><span class=\"v\">HBG7742B3\/01, HBG7742B3\/D3<\/span><\/li>\n<li><span class=\"v\">HBG7742W1\/01, HBG7742W1\/D3<\/span><\/li>\n<li><span class=\"v\">HBG934AB1\/01, HBG934AB1\/C8, HBG934AB1\/D3, HBG934AB1\/D7<\/span><\/li>\n<li><span class=\"v\">HBG934BB1\/01, HBG934BB1\/C8, HBG934BB1\/D3, HBG934BB1\/D7<\/span><\/li>\n<li><span class=\"v\">HBG972KB1\/01, HBG972KB1\/C6, HBG972KB1\/D3<\/span><\/li>\n<li><span class=\"v\">HBG9742B1S\/01, HBG9742B1S\/D3<\/span><\/li>\n<li><span class=\"v\">HBG974KB1\/01, HBG974KB1\/D3<\/span><\/li>\n<li><span class=\"v\">HBG974LB1\/01, HBG974LB1\/C6, HBG974LB1\/D3<\/span><\/li>\n<\/ul>\n<h3>Compact ovens (45 cm)<\/h3>\n<p class=\"rp-enr-head\">Model \u00b7 E-Nr numbers built in FD 0306\u20130405<\/p>\n<ul class=\"rp-enr-list\">\n<li><span class=\"v\">CBG7341B1\/01, CBG7341B1\/D3, CBG7341B1\/D7<\/span><\/li>\n<li><span class=\"v\">CBG7741B1\/01, CBG7741B1\/D3<\/span><\/li>\n<li><span class=\"v\">CBG934AB1\/01, CBG934AB1\/C8, CBG934AB1\/D3, CBG934AB1\/D7<\/span><\/li>\n<\/ul>\n<h3>Compact ovens with microwave (45 cm)<\/h3>\n<p class=\"rp-enr-head\">Model \u00b7 E-Nr numbers built in FD 0306\u20130405<\/p>\n<ul class=\"rp-enr-list\">\n<li><span class=\"v\">CMG7241B1\/C4, CMG7241B1\/C5, CMG7241B1\/C7, CMG7241B1\/D3, CMG7241B1\/D8, CMG7241B1\/D9<\/span><\/li>\n<li><span class=\"v\">CMG7241B1A\/C4, CMG7241B1A\/C5, CMG7241B1A\/C7, CMG7241B1A\/D9<\/span><\/li>\n<li><span class=\"v\">CMG7241B1B\/C4, CMG7241B1B\/C5, CMG7241B1B\/C7, CMG7241B1B\/D3, CMG7241B1B\/D9<\/span><\/li>\n<li><span class=\"v\">CMG7241B1M\/C7, CMG7241B1M\/D2, CMG7241B1M\/D9<\/span><\/li>\n<li><span class=\"v\">CMG7241B1S\/01, CMG7241B1S\/C7, CMG7241B1S\/D3<\/span><\/li>\n<li><span class=\"v\">CMG7241B2\/01, CMG7241B2\/C7<\/span><\/li>\n<li><span class=\"v\">CMG7241W1\/C4, CMG7241W1\/C7, CMG7241W1\/D3, CMG7241W1\/D9<\/span><\/li>\n<li><span class=\"v\">CMG9241B1\/01, CMG9241B1\/C4, CMG9241B1\/C5, CMG9241B1\/C7, CMG9241B1\/D3, CMG9241B1\/D9<\/span><\/li>\n<\/ul>\n<h3>Compact steam ovens (45 cm)<\/h3>\n<p class=\"rp-enr-head\">Model \u00b7 E-Nr numbers built in FD 0306\u20130405<\/p>\n<ul class=\"rp-enr-list\">\n<li><span class=\"v\">CDG714XB1\/C5<\/span><\/li>\n<li><span class=\"v\">CDG714XB1W\/01, CDG714XB1W\/C5, CDG714XB1W\/D3, CDG714XB1W\/D7<\/span><\/li>\n<li><span class=\"v\">CDG714XW1W\/01, CDG714XW1W\/C5, CDG714XW1W\/D3, CDG714XW1W\/D7<\/span><\/li>\n<li><span class=\"v\">CDG914XB1\/C5, CDG914XB1\/D3, CDG914XB1\/D7<\/span><\/li>\n<li><span class=\"v\">CDG914XB1W\/C5, CDG914XB1W\/D3<\/span><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Your Bosch Serie 8 oven (e.g. HBG7741B1, HBG7242B1) shows only the Bosch logo after power-up and the touch controls do nothing? The cause is a software fault in the SystemMaster module that controls the whole oven. SystemMaster repair: 500 PLN (approx. \u20ac115).<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","_rp_brand":"Bosch","_rp_device":"piekarniki","_rp_codes":"","_rp_module_type":"moduly-sterujace","footnotes":""},"class_list":["post-828","repario_usterka","type-repario_usterka","status-publish","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/reflash.pl\/en\/wp-json\/wp\/v2\/repario_usterka\/828","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/reflash.pl\/en\/wp-json\/wp\/v2\/repario_usterka"}],"about":[{"href":"https:\/\/reflash.pl\/en\/wp-json\/wp\/v2\/types\/repario_usterka"}],"version-history":[{"count":7,"href":"https:\/\/reflash.pl\/en\/wp-json\/wp\/v2\/repario_usterka\/828\/revisions"}],"predecessor-version":[{"id":925,"href":"https:\/\/reflash.pl\/en\/wp-json\/wp\/v2\/repario_usterka\/828\/revisions\/925"}],"wp:attachment":[{"href":"https:\/\/reflash.pl\/en\/wp-json\/wp\/v2\/media?parent=828"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}