The jazzy 1113 will not start, when you press the power button the speed light comes on gets full and then turns back off

That is possible. Check the power circuit from the battery and see if there is any loose connections or resistance in the circuit via the voltage drop method. Here are some links that may help:

Jazzy 1113 ATS Parts

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check wiring and pcb in your chair...it may be loose connection in between the path

I don't have a Jazzy 1113 ... mine is a jet 3 ultra and the controls seem to be identlcal and it too acts similarly particularly if I come to an abrupt stop by hitting an unseen object on the floor or a slightly raised threshold.
What I do is turn it off (power button) and after a few seconds turn it back on and find that the chair is ready to go again then I back up to see what that I hit.
The chair is very sensitive to approaching a threshold and the correct method is not to do it at an angle but in a direct (not angular) fashion.
Hope it helps,
Joe

The voltmeter should read 29 volts when on. You should never replace one battery and leave an old battery in the chair. Replace them both at the same time.

please contact the dealer and have a tech come with a programer and rread the error codes and tell u what is wrong and what to do or what needs to be done

If it is the older VSI controller, turn on chair. as the battery lights scroll, hold the joystick in the (UP) position until you hear a beep. Then immediately place the joystick in the (down) position until you hear a beep. then place the joystick in center position, once you hear the beep for the final time, it should be unlocked.

If you have a Dynamic controller, turn on chair then press the horn button to unlock.

Jazzy is in lock mode try the following to unlock:

Lock Mode

To unlock the VSI:

1. Press the on/off key and power on the VSI. The maximum speed/profile indicator should ripple side to side.

2. Push the joystick to the full forward position until the VSI beeps.

3. Pull the joystick to the full rearward position until the VSI beeps.

4. Release the joystick. There should be a long beep.

5. The VSI is now unlocked

Hope this helps

How old are the batteries? If you've had them for a few years it might be time to change them. Even if batteries are charged correctly they eventually lose power with use and need to be changed. Here is a link to the battery needed for the Jazzy 1113 http://www.replacementupsbattery.com/UB12350-NB.html

The flash of the speed lights indicate that you are in the charger inhibit mode and if the charger is not plugged in then you have a problem that needs to be checked by a tech or your provider that sold you your chair Sorry I don't have a quick fix

If your batteries are truly charge they should read around 24.5 VDC. And if the freewheel lever is engaged and you still have no movement your probably need to get into a service tech. Also check the circuit breaker on the chair.