Maker Pro
Maker Pro

Dirt Devil Jag3 Vacuum Repair

A8t0n

Oct 13, 2015
2
Joined
Oct 13, 2015
Messages
2
Hi All!

I am hoping for some help with repairing my Dirt Devil Jag3 canister vacuum. I was getting poor blower performance and was able to troubleshoot it down to a faulty speed or power control. The speed or power is controlled by a slider potentiometer which influences how much voltage is sent to the motor/blower. However, I don't know much about slide potentiometers. I would like to replace the defective pot with a proper resistor that will let the vacuum operate at almost full power as that is where we left the slider setting most of the time anyway. I am assuming (correct me if I'm wrong) that when the slide pot was at the "max power" or lowest resistance setting, there was still some residual resistance, and that is what I would like to duplicate with a standard resistor. I don't want to just short out the pot and take the chance of letting the smoke out :)

Markings on the slide pot: NGWH501-470k-A
Voltage measured when vacuum is turned on at the wires going to the pot (pot removed): 102 VAC

Any help on understanding what resistor and power rating would be appreciated!

Thanks,
Andrew.
 

Martaine2005

May 12, 2015
4,932
Joined
May 12, 2015
Messages
4,932
Hi A8ton,
I would like to say that you can simply wire the motor direct. And avoid the pot. However, isn't Swiss Voltage 240v?

Martin
 

A8t0n

Oct 13, 2015
2
Joined
Oct 13, 2015
Messages
2
Hi A8ton,
I would like to say that you can simply wire the motor direct. And avoid the pot. However, isn't Swiss Voltage 240v?

Martin
Thank you for your reply. If everyone is pretty sure I would be safe to simply short out the previous pot leads without a resistor, then I will. Swiss Voltage? In Canada the wall voltage is 110-120 60hz. However in the vacuum, the brain board is only sending 102 VAC to the pot.
 

Martaine2005

May 12, 2015
4,932
Joined
May 12, 2015
Messages
4,932
Swiss Voltage? In Canada the wall voltage is 110-120 60hz
Lol, Sorry, My mind was clearly elsewhere! Canada looks nothing like Switzerland..
I think the main board has some rectification going on. I do believe that you can still connect the motor directly across the points where the pot was. That will give you full power..

Martin
 
Top