I believe this is Kirby Model 1-HD. It stops working, I tested the electrical cable and the power switch with a voltage meter and they are good. There is current on the black wire to the motor but there is no current on the green wire to the motor.
Does this unit have a fuse? I do not see one yet. Thanks, Henry Doan
I had this problem with a model 1-HE. It was caused by a bad connection at a slide switch mounted on the side of the motor housing. The switch is operated by a lever when the front cover is in place. I think it is a safety system to stop the motor operating when the cover is off. Check for operation of and connection through the switch when the cover is on.
If it's anything like the Heritage II model 2HD, you may find this useful. We got this oldy-but-goody from my in-laws (with issues of course), and just tonight my stepdaughter was complaining about the fact that we never buy anything new with a good warranty. I pondered whether there is such a thing when it comes to vacuum cleaners. Anyway, I started taking it apart, and learned that both the hose and roller housing depress a plunger or actuator, to close a safety switch. Ours was simply dirty. Considering that you have a meter, you could try ringing it out. I didn't have any contact cleaner, but WD40 worked fine to clean up the contacts. One nice thing about the switch, was the markings for the different colored wires: G Y R W from front to back. It's a beautiful thing...when something is built so well, it's just meant to keep running. I wish Kirby would make automobiles. Hope this helps, Kevin H.
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More than likely you have a short in your power cord. however if you want to know for sure take machine apart until you can put an elec meter on switch where cord is attached. plug machine in and test the end of cord that is attached to switch if you have 120volts at that point its your switch thats bad. if you have no voltage or anything less than 110volts at the switch replace cord
If you have tested the cord with a voltage meter, and are sure it is good, there are several other possibilities. The Kirby is designed so that it will not start unless the bag assembly and rug head ( or attachment hose ) are fully in place. Be sure the fiberglass housing at the bottom of the bag is tight against the side of the motor unit. If this is not the problem, your switch has probably failed and needs replacement. A less likely problem on a machine this new is that a carbon brush in the motor has either become badly worn, or is stuck in it's holder and will need replacement.
The problem is most likely a bad cord. Take off the cord cover on the side of the motor unit, and pull the cord straight out to remove it. The cord can then be tested with a voltage meter, and replaced if necessary.
Check the cords two wires with an OHM meter for continuity replace if you get a reading showing OL The ground wire you can forget about this test
If any sort of numbers appear in the meters display the cord is good
Replace the switch instead
This unit uses two things to release the solution:
(1) an eletrical switch in the upper handle to send the signal to the foot valves, and
(2) an electric valve in the foot to release the solution to dispense on the carpet.
There is not reason to believe the switch has failed, and you would need somebody to check the voltage at the valves when the trigger is pulled. This should only be done by a person comfortable with a electric test meter, as this is 120 volts to the valves.
Determine if the headlight works before anything else. If the light works but the motor won't you have power thru the vac and the problem is internal possibly motor brushes... or a loose wire on the inside connecting to the switch. If the light goes out is likely a switch or cord problem. Switches on these vacs break more often than cords. What you see on top is the switch button, not the actually internal switch, however a switch does not normally fail while the vac is running, that sounds more like a loose connection or a bad cord. So isolate the cord. Unplug it at both ends and plug lamp ( or test meter) into the cord into the cord and gently wiggle where the plug end meets the cord. If the lamp goes on and off the issue is the cord. You can buy a replacement specific to the Kirby series and plug it in yourself. If this s does not isolate the problem, take it to a service center. Kirby is very intricate inside.
Here is a guide to diagnosing a problem with your Kirby. I would imagine that your power cord has a short in it or the carbon brushes need replaced. You may want the take a look at my guide for replacing the power switch as well to make sure that it was hooked back up correctly.
You can look at the wiring diagram and try to figure out how to use a circuit tester to test the switch but I would just suggest just swapping it for a good one (always good to have one good switch for testing) and see if it solves the problem.