New ticking noise while charging...

[TigaFF]

Roadster 1038 arrived last week and all has been well. When I returned from work and plugged in the usual fan noise from the back started but this time there is a ticking sound that is superimposed. The noise seems louder from the undersurface at the back and I assumed that the fans that cool the PEM and motor are running during the time the charger is delivering higher amperage. I am charging using a recently installed Tesla wall connector and a Henry Sharp CAN senior. I have limited the amperage to 48amps. Any thoughts from those with more experience? Possibly debris (leaves etc.) interfering with the fans? Failing electronic component? Doesn't sound like a bearing. but not sure. No problems with charging.
Below is Vimeo link with the sound..

This is the first time I have used Vimeo.. so we will see if I have done this properly
Thank you in advance for any thoughts

 

[sethr]

Sure sounds like a leaf or two to me. I suggest you go to Home Depot, they have a long grabber with an led light at the end, get those leaves out of the fans before you start charging; that's what I always do.

 

[DeedWest]

I agree with @sethr. I've heard that before and it turned out to be a few leaves caught in the fans.

 

[Nvbob]

Our Roadie-Vac (aka "Hoover") tends to pick up quite a few leaves annually. What we do is back the car up on a couple of ramps, remove the rear bottom panel, and CAREFULLY clean out the offending leaves. Before doing that, make sure the car is cool and NOT charging. Easy job but, I repeat, be careful, and watch the fingers. We use one of those long grabber things like @sethr suggests.

 

[TigaFF]

Thank you @sethr and @DeedWest. I have a "grabber in my tool box. Where is the orifice to to reach the fans. I have the original 2 motor setup. (the parts for the fan upgrade have been ordered through the Rockville SC) Do I need to remove a rear wheel?
@ sethr I see that you live close by. Stop by if you need a charge or a beer. @DeedWest you are also welcome if your travels bring you to the East coast

 

[TigaFF]

@Nvbob - thanks for answering the question regarding procedure. I will indeed be careful!

 

[DeedWest]

@DeedWest you are also welcome if your travels bring you to the East coast

What's funny...is I am very frequently in Old Town Alexandria, VA. Silver Spring is just a metro ride away from me. I'd LOVE to see your car in person someday! We'll make it happen.

 

[TigaFF]

@DeedWest that would be fantastic. Let me know when you are in the area. My wife and I are about a 10 minute walk from the metro. We'll take you out for dinner and talk about the only thing of importance: Roadsters

 

[TigaFF]

Thank you all for the correct diagnosis. Indeed "leave in the fan". It looks like I have the upgrade PEM fans even though it isn't documented in the service records. Agree?

 

[hsull8915]

That is indeed the single motor configuration "upgraded" fan. The original for my 2.0 #543 was two distinctly separate units.

My impression is that all Roadsters originally came with the 2 unit configuration, but they could have produced some later VINs with the upgrade from the factory. Perhaps someone else who has been studying them longer will know for sure.

 

[ShawnA]

I am sure my 2.0 #785 has the two separate fans.
Is this something that would have been upgraded during the warranty?
What is the advantage of the single motor unit, other than removing a motor and some weight?

Thank you,
Shawn