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It sounds like there may be an issue with the charging circuitry on your Makita DC18RC charger. Unfortunately, without a schematic, it can be difficult to diagnose the problem. However, here are a few things you could try:
Clean the battery contacts: Sometimes, a buildup of dirt or debris on the battery contacts can prevent the charger from properly detecting the battery. Try cleaning the contacts on both the battery and the charger with a clean, dry cloth.
Check the power source: Make sure the charger is plugged into a working outlet and that there are no issues with the power source.
Check the thermal sensor: The Makita DC18RC charger is equipped with a thermal sensor that prevents the battery from charging if it gets too hot. If the battery is too hot, let it cool down before trying to charge it again.
Try a different charging mode: The Makita DC18RC charger has two charging modes - rapid and maintenance. Try switching to the other mode and see if that makes a difference.
Check for loose connections: Inspect the charger and battery for any loose connections or damaged wires. If you find any, try repairing or replacing them.
If none of these steps resolve the issue, you may need to take the charger to a professional repair shop or contact Makita customer service for further assistance.
mine shows 'E' on display. was sent away to be tested by Makita they said nothing wrong, faulty battery. bought new battery, still doesn't work. Makita not pulling their weight
I KNOW IT !!! MAKITA the first gear is damaged the notches in the gearbox (planet-transmission)are grinded away about 2 or 3 mm are left and the gear shaft will not fit in the notches anymore , MAKITA the BDF 4** and many more models have all the same gear box problem, (NOT EVERY MODEL of MAKITA but much models ) LXT 18V and ??? because of the planet transmission GEAR BOX they are oft very vulnerable to switch over from one to 2 or from 2 to gear 1 the gearbox should anyway be replaced , and switch the topswitch on top of the machine without use the power switch at the same time its must standstill allways when shifting 1 to 2 or vice versa, inside the top switch there are special 2 springs build in inside to switch without turning because its have nothing to do with a synchronic gear box of a car , or choice to prevalence of repetition if you will not have again this trouble again buy Panasonic or Festool powertools this if you have people who are working with your tools you should never have problems with gearboxes anymore because of that notorious MAKITA problem by much models of Makita BDF4** and may be more models is also proven that have i so much this problem seen and repaired . but the gearbox itself from MAKITA is also not so expensive in compare to other powertools. but other tools moastly are selling individual parts like gearshafts and have metal notches instead of cheap plastic and not separate to buy, Makita delivered only 1 complete gearbox because its cheaper to get and all of the parts are new . marketing technical choice of MAKITA.
From the owner's manual: Indicator lamp The green power-ON indicator lamp lights up when the tool is switched ON. If the indicator lamp is lit but the tool does not start, the carbon brushes may be worn out, or the electric circuit or the motor may be defective. If the indicator lamp does not light up and the tool does not start, the ON/OFF switch or the mains cord may be defective.
The easiest to check is the brushes. Most newer tools have brushes with a spring loaded pin in them so when they wear down the pin pops and stops the motor so you don't wear the armature. Even without the pin the wire from the contact to the brush is short so the spring doesn't contact and ruin the armature. If the brushes are OK, you'll have to check the switch for continuity.
if the battery show good on the charger and you have a light i would check the switch. you can do a hot wire connection to check it. you need you battery and two wire connedtors. disconnect your switch and hook your battery straight to the motor. if the motor turns it is your switch. if not, that's bad, probably the motor is gone.
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