Schumacher SJ1289 - User Manual

Questions and Answers

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William CaldwellAug 15, 2025
Why won’t my Schumacher Remote Starter jump start my car?
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  sgravesAug 15, 2025
  If your Schumacher Remote Starter won’t jump start your car, several things could be happening. First, make sure the clamps have a solid, clean connection to both the battery and the frame. If the connections are reversed, disconnect the unit and reverse the clamps. Check the battery status by pressing the Battery Status button; if the battery is low, it needs to be charged. It's also possible that your vehicle's battery is defective and needs to be checked. Finally, ensure the portable power is turned on by setting the ON/OFF switch to the ON position.
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Jonathan MitchellAug 19, 2025
Why is my Schumacher SJ1289 Remote Starter not powering my 12V device?
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  Ethan MatthewsAug 19, 2025
  If your Schumacher Remote Starter won't power your 12V device, start by ensuring the 12V device is turned on. Next, check the battery charge status of the portable power by pressing the Battery Status button. If the battery is low, charge it. If the 12V device draws more than 20A or has a short circuit, disconnect it. A qualified service person will need to replace the internal 20A fuse.
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Felicia WrightAug 22, 2025
Why won’t the battery in my Schumacher SJ1289 Remote Starter hold a charge?
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  Lori PetersonAug 22, 2025
  If the battery in your Schumacher Remote Starter won’t hold a charge, the battery may be defective. Have the battery checked to determine if it needs replacement.
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Shaun ThomasAug 26, 2025
What to do if my Schumacher SJ1289 won’t power my 12V device?
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  Amy RogersAug 26, 2025
  If your Schumacher Remote Starter won't power your 12V device: * Ensure the 12V device is turned on. * Check the battery charge status of the portable power by pressing the Battery Status button. * The 12V device may draw more than 20A or have a short circuit. Disconnect the 12V device. A qualified service person should replace the internal 20A fuse.
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Thomas HorneAug 28, 2025
What to do if the Schumacher Remote Starter alarm is on?
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  Jennifer ScottAug 28, 2025
  If the portable power alarm on your Schumacher Remote Starter is activated, it's likely due to reversed connections. To resolve this, disconnect the jump starter and then reverse the clamps to ensure correct polarity.
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Diana RobinsonAug 31, 2025
How to fix a Schumacher SJ1289 Remote Starter when the display shows 'err'?
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  Joe SimpsonAug 31, 2025
  If the converter is on but the display of your Schumacher Remote Starter shows 'err', it could be due to a low battery or excessive power draw. First, recharge the unit to ensure the battery is fully charged. If the issue persists, make sure the connected device draws less than 1.7 amps of AC current.
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Timothy HowardSep 4, 2025
What to do if the compressor on my Schumacher SJ1289 Remote Starter shuts off?
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  osmithSep 4, 2025
  If the compressor on your Schumacher Remote Starter shuts off, it is likely due to overheating. Allow the compressor to cool down for a few minutes before trying to use it again.
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watkinsangelaSep 7, 2025
Why does the Schumacher SJ1289 Remote Starter display 'err' when the converter is on?
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  Lucas PerezSep 8, 2025
  If the converter is on but the display of your Schumacher Remote Starter shows 'err', it could be due to: * The jump starter battery not being fully charged. Recharge the unit. * The device drawing more than 200W or having a short circuit. Use only devices that draw less than 1.7 amps of AC current.
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Ashley FernandezSep 12, 2025
How to fix a Schumacher SJ1289 Remote Starter compressor that shuts off?
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  Diane BrownSep 12, 2025
  If the compressor on your Schumacher Remote Starter shuts off, it is likely overheated. Allow it to cool for a few minutes before trying again.