{"id":1775,"date":"2025-07-19T02:37:58","date_gmt":"2025-07-19T06:37:58","guid":{"rendered":"http:\/\/www.jckhvac.com\/?p=1775"},"modified":"2025-07-20T17:45:51","modified_gmt":"2025-07-20T21:45:51","slug":"mitsubishi-4240-4245-4246-error-code","status":"publish","type":"post","link":"http:\/\/www.jckhvac.com\/zh\/mitsubishi-4240-4245-4246-error-code\/","title":{"rendered":"Mitsubishi 4240, 4245, 4246 Error Code"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

Mitsubishi Air Conditioner Error Codes<\/a><\/h2>\n\n\n\n

Mitsubishi 4240, 4245, 4246 Error Code<\/h2>\n\n\n\n
Code Text<\/th>Description<\/th>Cause<\/th>Check Procedure<\/th><\/tr><\/thead>
4240, 4245, 4246<\/th>Over current protection.<\/td>If high current is detected for more than 10mins.<\/td>Check inverter balance. Reduced airflow through heat sink.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n


1. Error code definition
Overload protection
2. Error definition and error detection method
If the output current of \u201c(Iac) >Imax (Arms)\u201d or \u201cTHHS > TOL\u201d is continuously detected for 10 minutes during inverter operation.
Refer to the following page(s). [7-1 Error Code and Preliminary Error Code Lists]
3. Cause, check method and remedy
For inverter-related error codes, refer to the following page(s). [8-10 Troubleshooting Inverter Problems]
Cause Check method and remedy
(1) IPM contact failure Check the IPM and cooling plate for proper contact. (Remove the inverter board,
and check the IPM heatsink grease.)
(2) Air passage blockage Check that the heat sink cooling air passage is not blocked
(3) Power supply environment Power supply voltage is 342 V or above.
(4) Inverter, FAN board failure Refer to the following page(s). [8-10 Troubleshooting Inverter Problems]
(5) Compressor failure Check that the compressor has not overheated during operation.
\u2192 Check the refrigerant circuit (oil return section).
Refer to the following page(s). [8-10-3 Checking the Compressor for Ground
Fault and Coil Resistance Problems]
(6) The model selection switches
(SW5-3 \u2013 5-8) on the outdoor
unit are set incorrectly.
Check the setting for the model selection switch on the outdoor unit (Dipswitches
SW5-3 \u2013 5-8 on the outdoor unit control board).<\/p>\n\n\n\n

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JK HVAC We install, repair and service all brands of air conditioners! Including air conditioner cleaning, dryer vent cleaning, furnace repair.<\/mark><\/strong><\/p>\n\n\n\n

\ud83d\udccd Serving all of New York City: Manhattan, Brooklyn, Staten Island, Queens\u2026<\/mark><\/strong><\/p>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"

Mitsubishi 4240, 4245, 4246 Error Code Code Text Description Cause Check Procedure 4240, 4245, 4246 Over current protection. If high current is detected for more than 10mins. Check inverter balance. Reduced airflow through heat sink. 1. Error code definitionOverload protection2. Error definition and error detection methodIf the output current of \u201c(Iac) >Imax (Arms)\u201d or \u201cTHHS […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-1775","post","type-post","status-publish","format-standard","hentry","category-mitsubishi-error-code"],"yoast_head":"\nMitsubishi 4240, 4245, 4246 Error Code - \u7ebd\u7ea6\u5408\u6210\u51b7\u6696\u5de5\u7a0b\u516c\u53f8<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/www.jckhvac.com\/zh\/mitsubishi-4240-4245-4246-error-code\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Mitsubishi 4240, 4245, 4246 Error Code\" \/>\n<meta property=\"og:description\" content=\"Mitsubishi 4240, 4245, 4246 Error Code Code Text Description Cause Check Procedure 4240, 4245, 4246 Over current protection. 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