Blower motor keeps failing, even after replacement

[Aquabear]

In my old(new 2014) Jeep Grand Cherokee Summit, I think(theory not tested) I had a loose ground possibly.
I went thru 4 blowers, main computers and a lot more, all under 50,000 miles- nicest,luxurious and shi77iest vehicle I ever had.
Have the electrical system fully checked n tested. I couldn't wait to be done with that Jeep/lease and back to Yota I ran- Usain Bolt style!!!!
Edit: Good luck and I hope it never happens again to anyone

 

[flyrv9]

So what kind of blower motor failures do we have here? Did they burn out, have bearing issues, fail to run, open circuit, short circuit, what? Perhaps a post mortem of your failed motor would give a clue as to cause. Is the motor clogged with dirt?

Like previously mentioned I'd check supply voltage and current draw and compare to ops specs of the motor. Motor should have an ID plate with info as to RPM, voltage and current.

 

[Salvo]

So what kind of blower motor failures do we have here? Did they burn out, have bearing issues, fail to run, open circuit, short circuit, what? Perhaps a post mortem of your failed motor would give a clue as to cause. Is the motor clogged with dirt?

Like previously mentioned I'd check supply voltage and current draw and compare to ops specs of the motor. Motor should have an ID plate with info as to RPM, voltage and current.

My three were repaired by the dealer because they were all within two years and 14,000 miles, purchased new. Asking them the root cause after the repair was futile. They replaced the part and that was it. Symptom-wise, the motor would start a faint clicking or whirring noise, after a few days the fan speed would audibly vary, and then it would just die. :noidea:

 

[catrains]

My three were repaired by the dealer because they were all within two years and 14,000 miles, purchased new. Asking them the root cause after the repair was futile. They replaced the part and that was it. Symptom-wise, the motor would start a faint clicking or whirring noise, after a few days the fan speed would audibly vary, and then it would just die. :noidea:

clicking sound can be the armature com bars lifting . the brushes then moving over these make this sound.

could be at the high speed setting these are lifting....
IF the motor was improperly made ,this is why these are failing. with high speed the motor will heat up to the max and if the material used to hold the com bars is unable to handle this heat this happens.

if someone posts some pictures it would be helpful to determine whats the motor problem .

 

[diddley.bo]

Took it to a dealer for warranty where they replaced it right away.

 

[LandCruiser]

So what kind of blower motor failures do we have here? Did they burn out, have bearing issues, fail to run, open circuit, short circuit, what? Perhaps a post mortem of your failed motor would give a clue as to cause. Is the motor clogged with dirt?

Like previously mentioned I'd check supply voltage and current draw and compare to ops specs of the motor. Motor should have an ID plate with info as to RPM, voltage and current.

Mine has gotten super weak that it won't move air with the filter in place.

I keep putting off replacing it because I also need to replace the damn driver's side lock actuator thingy again.