Meile blue moon canister, 5yrs old. The power hose contacts worn, intermittent contact lost, so power head goes on/off while vacuuming. Is there a way to fix without repalcing $$$ parts? my theory is build up the trailer -like metal plug contacts by soldering/welding some how, altho could be challenging.
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Re: blue moon works intermittently
Take the hose handle apart and look at the bottom side of the switch circuit board. Sometimes a contact or 2 break loose from the solder and will work intermittenly. Resolder the contacts if this is the case, put back together and try again.
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Loss of sucktion tells me that you clogged up the hose or over filled the bag. There is a very good chance it will run again in about 20 mi after it cools. It will also turn off after about 5 min if you do not fix the obstruction or replace the bag.
My wife has the same vacumn, and has already replaced the hose, and again it was shutting off continously with the power head.
Rather then spring another $150.00 plus for a new hose, I decided to take it apart to see if it had a shorted wire..
There are several small screws along the length of the control portion, as well as two small screws that hold the end cap (where the hose goes into the heavy plastic control part),
When I got it apart I did not see any shorted wires...however what I discvovered was where the hose "swivels" are 3 metal contact bands, and some electrical lubricant.
On the other side was a small circuit board with three paper thin copper contacts which lined up with the metal bands.
The bands looked a bit worn.
So I ever so gently bent the copper contacts out just a tiny amount further, and gently cleaned (with a bit of alcohol) the metal bands to take justy a tiny bit of what looked like an excessive amount of electrical grease.
There are no hose specs. You have continuity or you don't. These are very problematic canisters as they age. Kenmore canisters are very subject to dirt build up on internal contact rings where they swivel at the elbow adjoining the vac. They are also prone to intermittent connections at the handle/wand junction and at the wand/power head connection. Due to the weight of the head there is a lot of strain on those connections. You never fix half the connection, always both, male and female components in pairs for best results.
It is not a solid short. This is caused by static arcing in the wand and in the connectors from base to hose. I was able to fix mine by smearing some dialectric grease on all electrical parts in the wand(especially by the led switch) and in the three prong connectors at the base to hose. Have not had nay problems since doing this.
The contacts are fine, they just need to be bent up a little to ensure proper pressure with contact plate. I had exactly the same problem, and it solved it. Do not remove black graphite lubricant from contacts!!!
Check the contacts where the power head attaches to the wands and also where the wnd attaches to the hose. If any of the contacts look burnt, then they will need to be replaced. Unhooking them when power is on is what causes most of these problems. But if they look ok, could be a problem inside the power head, or in the circuit board that is inside the cannister.