{"id":616942,"date":"2026-09-20T17:41:58","date_gmt":"2026-09-20T12:11:58","guid":{"rendered":"https:\/\/stitchpartner.com\/jack-bartack-button-machine-error-codes-t781e-t1900\/"},"modified":"2026-09-20T18:32:36","modified_gmt":"2026-09-20T13:02:36","slug":"jack-bartack-button-machine-error-codes-t781e-t1900","status":"publish","type":"post","link":"https:\/\/stitchpartner.com\/hi\/jack-bartack-button-machine-error-codes-t781e-t1900\/","title":{"rendered":"JACK Bartack Error Codes: T781E, T1900, 1900BSK"},"content":{"rendered":"

Written by Aashu, owner of Stitch Partner. These JACK bartack error codes cover the machines we support most, because we have supplied bartack and button machine spares to garment units since 1989.<\/em><\/p>\n

Short answer:<\/strong> On a JACK JK-T781E, E7 and E9 mean the motor or needle-position signal is not reaching the box. On a JK-T1900, E-025 to E-028<\/strong> are origin-search errors (a sensor plug or stepper problem) and E-003<\/strong> is the head-tilt switch. Switch off, wait, reseat the plug named in the table, then restart.<\/div>\n
\"JACK<\/figure>\n

Jump to: JK-T781E<\/a> | JK-T1900 \/ T1900G<\/a> | JK-1900BSK<\/a> | \u0905\u0915\u094d\u0938\u0930 \u092a\u0942\u091b\u0947 \u091c\u093e\u0928\u0947 \u0935\u093e\u0932\u0947 \u092a\u094d\u0930\u0936\u094d\u0928<\/a><\/p>\n

First, note the exact code on the panel. Then switch off and reseat the plug named in the table. After that, restart and test on scrap cloth. However, if the same JACK bartack error code returns, stop restarting, because repeated faults can damage the board. Instead, check the motor cable and the supply voltage. Finally, replace a part only when the plug, cable and supply are fine.<\/p>\n

JACK bartack error codes: JK-T781E<\/h2>\n\n\n\n\n\n\n\n\n
Code<\/th>\nMeaning<\/th>\nWhat to do<\/th>\n<\/tr>\n
E1<\/td>\nPower module overcurrent or overvoltage<\/td>\nRestart; if it repeats, check the power board<\/td>\n<\/tr>\n
E3<\/td>\nStepper motor communication abnormal<\/td>\nCheck the cable between the stepper drive board and main board<\/td>\n<\/tr>\n
E6<\/td>\nStepper motor sensing abnormal<\/td>\nCheck the opto switch and the stepper mechanism<\/td>\n<\/tr>\n
E7<\/td>\nMotor plug loose, position signal abnormal, head blocked or fabric too heavy<\/td>\nRestart; check head, positioner, motor and module drive<\/td>\n<\/tr>\n
E9<\/td>\nPositioning signal abnormal<\/td>\nCheck the up and down positioning signal and the belt pulley<\/td>\n<\/tr>\n
E11<\/td>\nAuto positioning fails after boot<\/td>\nCheck the positioner; the motor will not run until it is fixed<\/td>\n<\/tr>\n<\/table>\n

JACK bartack error codes: JK-T1900 and T1900G<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Code<\/th>\nMeaning<\/th>\nWhat to do<\/th>\n<\/tr>\n
E-001<\/td>\nPedal not in middle position<\/td>\nRelease the pedal<\/td>\n<\/tr>\n
E-003<\/td>\nHead tilt error<\/td>\nReturn the head; check the tilt switch<\/td>\n<\/tr>\n
E-004 \/ E-005<\/td>\nLow \/ high voltage<\/td>\nCheck supply<\/td>\n<\/tr>\n
E-007 \/ E-034<\/td>\nMain shaft driver abnormal<\/td>\nSwitch off, wait, restart<\/td>\n<\/tr>\n
E-008 \/ E-009<\/td>\n24 V supply error<\/td>\nSwitch off, wait, restart<\/td>\n<\/tr>\n
E-012<\/td>\nPresser foot position error<\/td>\nCheck CZ025 on the head signal board<\/td>\n<\/tr>\n
E-013<\/td>\nEncoder disconnected<\/td>\nCheck plug X5<\/td>\n<\/tr>\n
E-015<\/td>\nBeyond sewing area<\/td>\nPress RESET; check pattern and X\/Y scale<\/td>\n<\/tr>\n
E-016<\/td>\nNeedle bar up position error<\/td>\nTurn handwheel to bring needle bar up<\/td>\n<\/tr>\n
E-018<\/td>\nCutter position error<\/td>\nCheck CZ024<\/td>\n<\/tr>\n
E-019<\/td>\nEmergency stop switch not normal<\/td>\nReset the switch by hand<\/td>\n<\/tr>\n
E-025 \/ E-026<\/td>\nX \/ Y origin search error<\/td>\nCheck CZ021 \/ CZ022 and X9<\/td>\n<\/tr>\n
E-027 \/ E-028<\/td>\nPresser \/ thread-catching origin error<\/td>\nCheck CZ025 or CZ026, and X9<\/td>\n<\/tr>\n
E-030<\/td>\nMain board and stepping board communication<\/td>\nPower cycle; check the cable<\/td>\n<\/tr>\n
E-035 \/ E-036<\/td>\nMain board overcurrent<\/td>\nPower cycle; replace motor, then main board<\/td>\n<\/tr>\n
E-037 \/ E-038<\/td>\nMain shaft overcurrent \/ machine locked<\/td>\nCheck encoder connection and mechanical jam<\/td>\n<\/tr>\n
M-317<\/td>\nMain board to panel communication error<\/td>\nPower cycle; check cable and boards<\/td>\n<\/tr>\n
M-333<\/td>\nLubrication alarm<\/td>\nOil the machine, then reset<\/td>\n<\/tr>\n<\/table>\n

Other M-codes (M-300 to M-332) are pattern, memory and USB import errors: select another pattern, restore defaults from the system menu or update the panel program, as described in the manual.<\/p>\n

JACK JK-1900BSK (older three-digit codes)<\/h2>\n

E7 machine lock; E30 needle bar not up; E40 sewing area exceeded; E221 lubrication alarm; E302 head tilt; E303 24 V supply; E730 encoder (check main shaft motor cable); E811 overvoltage; E813 low voltage; E901 main shaft driver; E903 stepping driver; E907 and E908 X and Y origin; E910 presser origin; E913 thread-catch origin; E915 and E916 communication errors.<\/p>\n

When a part is needed<\/h2>\n

First, origin errors are mostly a dirty or loose sensor plug. However, overcurrent and driver codes point to the motor or main board. Browse JACK part books<\/a> to identify the exact part. Official reference: JACK T1900G instruction manual<\/a>.<\/p>\n

To prevent these faults, first keep the machine clean and oiled. Also, use a stabiliser, because unstable mains voltage causes many codes. In addition, never pull on the plugs, since loose or damaged cables cause repeat errors. Moreover, switch off before you unplug anything. Therefore, a few minutes of care each week saves costly repairs. Finally, keep a note of every code and the date, so you can spot a pattern.<\/p>\n

When to fix JACK bartack error codes yourself<\/h2>\n

Besides that, always test after each fix. For example, run the machine slowly after you reseat a plug. Then, if the code returns, move to the next check. In short, change one thing at a time. Consequently, you will know what fixed it.<\/p>\n

Also, remember that a code is only a clue. For instance, an overcurrent code may come from a dry machine, not a bad box. Likewise, a sensor code may be just a dirty sensor. Therefore, clean and check first, and then replace parts. As a result, you save money and downtime. Otherwise, you may change a good part.<\/p>\n

However, some faults need a technician. For example, a burnt smell or a blown fuse means you should stop at once. Similarly, repeated overcurrent codes point to a failed part. Because of this, do not open a live control box. Instead, send us the model number and code on WhatsApp. Then we can suggest the right part quickly.<\/p>\n

Meanwhile, keep this page handy, because the same codes appear on the T1900G. Therefore, save the link on your phone. Also, share it with your mechanic, so everyone reads the same list. Finally, come back whenever a new code appears.<\/p>\n

\u0905\u0915\u094d\u0938\u0930 \u092a\u0942\u091b\u0947 \u091c\u093e\u0928\u0947 \u0935\u093e\u0932\u0947 \u092a\u094d\u0930\u0936\u094d\u0928<\/h2>\n

What does E7 mean on JACK T781E?<\/strong> The motor plug is loose, the position signal is wrong, the head is blocked, or the fabric is too heavy.<\/p>\n

How do I clear M-333?<\/strong> First, oil the machine as the manual describes. Then reset.<\/p>\n

For background, see sewing machines on Wikipedia<\/a>.<\/p>\n

Related guides<\/h2>\n

All JACK error codes by model<\/a> | JACK A4, K4, A5<\/a> | JACK F4, F5, F6<\/a><\/p>\n

About Stitch Partner: we deal in garment machinery and all spares: cloth cutting machines, steam irons, scissors and sewing machine parts. Our offline business has been serving tailors, boutiques and garment units since 1989, and we now deliver across India online.<\/em><\/p>","protected":false},"excerpt":{"rendered":"

JACK JK-T781E, T1900 and 1900BSK bartack and button attaching machine error codes with meaning, first fix and the part to check.<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_yoast_wpseo_meta-robots-noindex":"","_yoast_wpseo_meta-robots-nofollow":"","_yoast_wpseo_bctitle":"","_yoast_wpseo_canonical":"","_yoast_wpseo_opengraph-title":"JACK Bartack Error Codes: T781E, T1900, 1900BSK","_yoast_wpseo_opengraph-description":"JACK T781E, T1900 and 1900BSK bartack and button machine error codes with easy fixes.","_yoast_wpseo_twitter-title":"JACK Bartack Machine Error Codes","_yoast_wpseo_twitter-description":"JACK T781E, T1900 and 1900BSK error code list with 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