Does the jet 3 ultra need to be plugged in when not in use

Question edited for clarity.

You have a dead short somewhere. You need some electrical knowledge and a digital multimeter for testing. Take all the covers off. Look for wiring that has rubbed through and touching or melted. Disconnect one of the motors and replace the fuse. If it still blows, reconnect that one and disconnect the other motor. If one motor doesn't blow and the other does, you know you have a faulty motor. If neither stop the issue, then you move up to the controller and look up there. With a meter you can check for shorts within the motors, as well as grounds.

Or just take it to a Service Centre and have it repaired and serviced properly.

Basic troubleshooting

INFINFB2045 Jet 3 Ultra Troubleshooting

Pride Mobility https://www.pridemobility.com > pdf > infinfb2... PDF troubleshooting instructions for the Jet 3 Ultra Power Chair. This information is to be ... A blown charger fuse can cause the charger inhibit to activate.

• 
  

  JET 3 ULTRA

  https://www.pridemobility.com > pdf > us_jazzy
  PDF
  Jet 3 Ultra www.pridemobility.com. 3 ... If the circuit trips, allow your power chair to "rest" for approximately one minute. ... thermal fuse on each lead.

INFINFB2045 Jet 3 Ultra Troubleshooting
https://www.pridemobility.com/.../troubleshooting/infinfb2045_jet_3_ultra_ troubleshooting.pdf
File Format: PDF/Adobe Acrobat
troubleshooting instructions for the Jet 3 Ultra Power Chair. ... What if the systems on my Jet 3 Ultra seem to be "dead" (controller does not light up when the on/off key is ... you continually allow the battery condition meter LEDs to fall into the red area, the ... 1 Flash. The batteries need charging. Check the battery connections.

The Pride Mobility Net 3 ultra has a 3 amp off board charger looks like this and can be purchased from Monster Scooter parts. It plugs into the front of the joystick.


http://www.monsterscooterparts.com/24-volt-3-amp-xlr-battery-charger-upg.html

Wall outlet bad? Charger not turned on/plugged in right? Something disconnected? Bad battery connection? Blown fuse in chair or charger? Bad battery or batteries?

Something between the batteries and the motors and joystick is interrupted. Recheck fuses and connections.

please contact a dealer tech,u may have a bad controller it happens

rectifier on charger

The chair should have a meter on the rear panel where the 9 pin connector for the joystick plugs into the chair when you plug in the charger cord the meter should move up and the lights on the joystick should flash indicating the charger is plugged in. When the chair is fully charged the meter should read zero or bounce up and down. Hope this helps

You can use the AC charger cord from a computer as a replacement for the AC cord of the charger. If the AC cord plugs into the wall and plugs into the charger or charger receptacle on the back of the power chair, you can use it.
If I remember correctly, This chair has a 4 Amp on-board charger which has an AC receptacle on the back of the chair to plug in an AC cord. The off-board chargers take a universal AC cord which will work with a universal computer AC cord. If the AC cord plugs in, use it.

acampbel I went to pride website and could only find the manual for the Jet 3 ultra. I don't know if that manual can help you but goto pridemobility.com and select Jazzy chairs, scroll down until you see the picture for the Jet 3 Ultra click on the picture and you can download the manual from that page. Hope this helps you