My Blower Turns itself on when it is not supposed to.

You can find the tonnage in the model number which increases by increments of 12, so if the model number is 24 =2 tons. Model number on your a/handler is 17. Thats a ton and a half. Really should match the evap and condenser for the best efficiency. ...

inside blower housing you have 4 bolts attaching squirrel cage housing to upper track. remove it comes out with motor attached.

i would check fan speed. it's probably on high. you might be moving more air with new system. a dirty evaporater on old unit woud have gave you a larger temperture drop.

Check handler board fuse xxxxxxxxxxxxxxx

You have a bad sequencer on the air handler.

Absolutely, however, you want to properly diagnose the reason why the fan is not running. It could be a less expensive part than the fan motor itself.
First, check to see if you have the proper voltage going to the motor. I believe your motor requires 240volts ac. If you do not have 240 volts, you have a control problem.......either the thermostat is failing to close R & G or your blower relay may have failed to close the contacts necessary for your fan to operate.
If you have the voltage, then you want try spinning the blower wheel with your hand. Does it spin freely? Is the motor warm/hot? If so, turn everything off for an hour or so. As soon as your energize it, try spinning the motor with your hand again.....if it spins freely with no resistance and then starts running by itself, the problem is the run capacitor (approx $20.00 depending on where you purchase it from). If there is resistance when you try to spin it, the problem is most likely with the bearings and you will need to replace the motor.......if you have to replace the motor, go ahead and replace the capacitor also, making sure it is properly "matched" with your new motor.

I hope you find this to be very helpful to you, moving forward. :-)

Your problem is the TXV. I just had person with the same problem. Replace TXV no problem Rusty

i dont think so that variable speed air handler is a nightmare when(not if) that motor goes bad its 700.00 to 900.00 the regular 3 speed one your getting 125.00 and it will last 10 to 15 years ....... if you realy want fun install a 17 seer system ,you will have your repair guy on speed dial

I'd look in one of 2 areas.

1. often there is a central return in the house. This is the place where the air gets pulled back to the unit and is likely very close to your thermostat. Check for a filtered louvered grill there and see if your filter is located here. If so, you can access the filter by opening the filter frame with a screwdriver or even a coin.

2. Otherwise I would expect that your filter is on the return-air side of your air handler (where the blower is) Older models have the filter actually inside the air handler in the blower compartment. Newer models may have a small separate filter door. I'd look in these areas.

hope this helps
ghoff

follow the copper lines coming into the air handler.1 will be large and insulated and the other smaller and uninsulated.They attach to your evap coil.