Drill does not run. Power cord is good. Trigger switch makes contact. Brushes look very good. No loose or disconnected wires. What should I check next?

The only things that would cause this are a burnt out trigger switch or the motor brushes are worn out.

check the position of the forward/reverse switch as if it is not properly positioned the current doesn't know which way to spin the motor
check that switch for loose wire or being faulty

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.

Check the brushes: they should be over 1/4" long, the springs should be intact and pushing the brushes into the armature and they should slide easily in the brush holder. Using a volt meter, check that you are getting full power to the switch. Next check that power is getting through the switch when the swtich is held on. If all of these check out you may have shorted or burnt windnigs on the armature or field.

If you mean it does nothing not even make a sound then start simple by checking the cord. If you have full voltage after the cord then look at the brushes. If they are good and making contact with the comm. end of the armature then check the switch. Check all the terminals to see if they're all connected and not burnt from arcing.. If all that is good it may have a bad motor field or armature. I would guess cord, switch, or brushes though. You can check all of that with a volt ohme meter.
Hope that helped and good luck!

First before you open the tool ground yourself. The switch is probably static sensitive. Now open the tool and check for wires that may have come loose from the switch, or motor brush area. If no bad wires make sure the switch terminals are ok (not broken or bent and are tight enough to make contact with the batery terminals). Next check the brushes and make sure they move freely in the brush holders. You didn't state the model so it may not have brushes you can access. If all that is good disconnect the motor from the switch and secure the motor in a vise. Take wires with alligator clips and connect the battery directly to the motor for just a second to see if it runs. If the motor runs you have a bad switch assuming your battery is charged.

The brushes are usually replaceable from outside the drill. Make sure each spring is properly tensioned. Make sure the electrical outlet is live by trying a working lamp or other item. Pull the trigger full on and wiggle the cord where it goes into the plug--if the tool turns on intermittently, suspect a bad cord connection at the plug. Just replace the plug after cutting the cord back an inch or so. You can test the speed control by a temporary jumper across the module which should allow the tool to run full speed. Make sure the reversing switch is ok. Hope this helps!

This is typically caused by one of two things. Worn brushes or a bad switch. How old is drill and has it been used a lot? If the brushes are worn/bad they will need replacing. If the switch (trigger) is bad it can sometimes be fixed by spraying an electronic contact cleaner in it. This cleaner can be purchased at Radio Shack. I have also had good success using WD40. Spray the switch down good (power removed) and manually operate it a few times, wipe it clean, plug it in and try it again.

Check the Cable between the plug and the switch for continuity using the ohmeter or continuity tester part of a cheap multimeter. Place one lead on each of the plug contacts in turn, and the other on the other end of that wire. If this is okay, check the switch for continuity by placing each lead of your tester on the in and out contacts and pressing the trigger. If still no joy, check the brushes. If still no joy, check the motor windings for continuity.

Check the brushes. the switch may have a short. Also, check the wiring from the switch, making sure there is no loose connections to the field. Definitely fixable. Lemme know Please rate me