Karcher WV 50 faulty motor where can I get a replacement

Unfortunately those machines do not have serviceable bearings. The entire motor needs replaced. However, I have saved noisy bearings by putting oil on them, specifically 3 in 1 Blue Label motor oil. A few drops spread on the top and bottom of the bearings and giving the motor a few backward and forwards turns by hand will help those bearings immensely.

Precision measurement of lubricant is completely unnecessary. Simply apply a sufficient amount of lubricant to all parts to partially saturate all pivots and bearings without applying so much as to make a mess.

There are no parts specially available but you can find the bearings aftermarket by matching the number on them.

Hi. I've just bought the karcher window vac wv50 & am having the same problem finding the serial No. I presume you want to register your product for the guarantee to be valid. I went online Karcher.co.uk & registered mine. You will note that when doing so it does not ask for a serial number but a model No. This is found on the side of box you got the item in (mine is just above the barcode) & it reads something like; 1.633-113.0. Hope you still have the box!

Check specs on unit and amperage. If it is less than 15 then the upstairs breaker is kicking off prematurely - Not uncommon event. If unit is drawing more power than specs there is excessive friction in motor bearings. Also check out brushes for good contact since they wear.

You may have damaged a bearing or bearing housing and that could be causing the motor armature and field to rub together which in turn causes the motor to draw a significantly increased current to overcome the friction. It could be a simple fix if it is a bearing but if it is the housing then it is likely toast. I used to repair motors years ago and the cost then was not bad. However if the motor is heat damaged, as happened to my power rack last year, it was cheaper to buy a new one than replace the motor. A burned out motor is not worth repairing these days.

Kirby recommends getting it serviced yearly but if you are mechanically inclined you can service it yourself. the biggest thing is cleaning and blowing all the dust out of the motor and inside compartment. also check your motor fan for chips nicks, and stress cracks around the center. Inspect the bearings and motor carbon brushes for wear and noise. and put some 3 in 1 oil on the top handle slide assy on top of the motor. do not disassemble this unit there are many way bearings inside and if its not reassembled just right it will throw off your self propelled unit

if you run your vac to long after the fan is broke it will cause excessive vibration and the bearings can go out. in almost all cases i replace the fan only. most of the time if you have a bad bearing the vac will make a grinding noise. you can also tell a bad bearing by grabbing the belt pulley on the end of the fan and pull up and down if it moves alot then your bearing is also bad. you can get the bearings separate witout ordering the armature assy. when talking of replacing any of these parts besides the fan i would advise you to take your vac to your local repairman. working on motor parts of a kirby can get pretty involved. to replace the fan first take the housing off where your belt and brushroll are. you should then see 5 screws on the front of your kirby. remove all 5 screws. then remove the handle. at the very bottom of your handle you will see a piece that allows you to move the handle, on the back side of this you need to push in with your thumb and the handle should pull off. then you should see a plastic piece directly below that snaps into the top housing. remove the 2 screws from this. one where the cord boot is and one above your power drive neutral/drive lever. then under this plastic piece is 2 more screws on your top housing. when these are out your housing should pull off. if not then remove the bottom plastic housing of your outer bag. then go back and look at the front again and you will find since removing the top housing you have exposed 2 more screws in the front fan cover housing that also need to come out. after this pry this housing off and you should be looking directly at the fan. grab fan with pliers in one hand and with the other hand apply pliers to the silver belt pulley and turn this piece clockwise. it should unscrew and then you can pull your bad fan off and attach the new one. i hope this helps and remember its not as hard as i probably made it sound. good luck!!!!

small red washer on top - motor is the top. Also on only everyother fan spins.
Small fan with the small hole up
Barrel Spacer
Large Fan with the the hole down
Hour Glass spacer - this spacer has a washer welded to the bottom of it - spacer down!
small fan hold down.
Lower motor housing

Hope you changed the bearing while you were where here.

Give it a spin by hand and make sure there is no grinding.

Hope this is right, doing it from memory, have a picture at work.

Good luck

M

Did you check the brush roll, may have a problem with it. But you could have a problem with a motor bearing going bad, they getting loud, also if there is a problem with the motor fan, that may be the cause of it being loud. Bissell 3510 either is obsolete or is thw rong number, it doesn't come up at the Bissell site.