Tumble Dryer start capacitor

[pintglass]

Re: Tumble Dryer start capacitor

I've fixed the motor and the dryer seems to be working fine, so thanks to all that helped.

[R_J]

Re: Tumble Dryer start capacitor

You should be able to clean the enamel and solder it, If you can expose a bit more of the wire that would be better but if it's held in by the rest of the winding that might be tough. Try and secure the wire that is connecting to where it is broken so there won't be any stress on the solder joint. slip a piece of heat shrink or even a thin piece of plastic tube over the longer wire first, then slide it over the solder connection.

[pintglass]

Re: Tumble Dryer start capacitor

I have taken the motor apart and think I've found the problem, I have a break in the winding wire.

As can just about be seen in the image I pushed the wires together and now get about 60 ohm's from red to black and about 30 ohm's from black to white.

Could I solder the wire together?

Would i have to be careful not to remove the enamel from the wire, i have some uv cure solder mask could i cover the wire with this to insulate it.

[redwire]

Re: Tumble Dryer start capacitor

The motor has an open-circuit on the black wire, take it apart.
You might be able to find the break and do surgery to fix it. Or just get a replacement motor. It might be broken from a tug on its leads.
In the pics I see one winding set is a darker colour than the other which is weird.
The relay is on the control board, I'd leave it alone for now.

[R_J]

Re: Tumble Dryer start capacitor

Why risk damaging the relay by opening it, when you know the motor winding is open? find a used motor or open your motor and see if there is just a broken wire, maybe you will get lucky and be able to repair the motor.
I see used YXH80-2A, motor and capacitor for £16.99
https://www.ebay.co.uk/itm/YXH80-2A-...IAAOSwSdxc3Ryz

[sam_sam_sam]

Re: Tumble Dryer start capacitor

but if there is a relay in it, you have nothing to lose trying to open it.

You have a good point you have nothing to loose I would open it up

[stj]

Re: Tumble Dryer start capacitor

but if there is a relay in it, you have nothing to lose trying to open it.

[sam_sam_sam]

Re: Tumble Dryer start capacitor

If this is the case then the motor is probably not good

[pintglass]

Re: Tumble Dryer start capacitor

I get the same as before 30 ohms between red and white and OL between red and black and OL between black and white.

[redwire]

Re: Tumble Dryer start capacitor

Redo the ohmmeter test. With three motor wires, there should be continuity between any two wires. No open circuit.

[pintglass]

Re: Tumble Dryer start capacitor

Yes the dryer is reversible it changes direction when in use.

If my motor has a switch it must be inside the motor housing as its not visible.

Would it be worth me getting a start capacitor to try or should I remove the motor to have a look inside the housing?

[sam_sam_sam]

Re: Tumble Dryer start capacitor

Look at this video and see if your motor look like this one
If not show a picture of the front of the motor where the belt is

https://www.youtube.com/watch?v=o4uJOmCyG1U

Watch it until he shows where the motor mechanical speed switch assembly is and what is behind it
This is what I was talking about earlier

I tried to look up the model number and could not find a manual for it

[redwire]

Re: Tumble Dryer start capacitor

I read it in a service manual for another Hotpoint Aquarius tumble dryer AQC851. It has an "anti-allergy program" that uses two directions, so the drum must have strange tines. The motor has the same three leads and cap. That model needs a hardware dongle to do tests and read fault codes. What a scam.

If it does reverse, then there is no start winding. I would suspect the capacitor is low value at load or mains voltages? Compared to a multimeter test.

The motor is used in many other models.
C00279461 Welling YXH80-2A Type 338 Motor, 9uF cap. 2700RPM 80W 0.92A 220VAC 50Hz.

[R_J]

Re: Tumble Dryer start capacitor

Some models DO reverse, it prevents clothes from being rolled into a ball and not drying properly. A reverse action tumble reduces creases, which means less ironing once your clothes are dry.
And this from a similar service manual

[sam_sam_sam]

Re: Tumble Dryer start capacitor

if this wiring diagram is correct why does this motor needs to be reverse-able I have never seen a dryer with this feature what would the purpose be

[redwire]

Re: Tumble Dryer start capacitor

WAIT this motor is reversable?

[pintglass]

Re: Tumble Dryer start capacitor

The motor won't start even with the belt removed unless I help to get it going.

[redwire]

Re: Tumble Dryer start capacitor

You should get continuity, a reading of a few ohms. With the motor unplugged, white-red should be a few ohms and white-black as well. black-red should roughly equal the sum of the two.

If you get open circuit, then you might have tugged on the motor's wires and broken a connection somewhere, have to look hard or take the motor apart to fix.
It needs the start winding to get going with drum and clothes as a load. A motor will start up with no-load, belt off even though no start winding connected.

[pintglass]

Re: Tumble Dryer start capacitor

Hotpoint TVF770G Aquarius tumble dryer 95687010000, also goes by Indesit, Ariston, Cannon, Creda, Proline etc. I could not find the service manual.
But looking at another model, the motor has two windings and the control board seems to have a relay to do the start/run switching.

The motor might actually be OK, it's just the rolling load is too high. The belt might be installed wrong or too tight and I would check the support rollers are not worn out or need lube, the dryer is level. Otherwise a new belt will just wear out fast.

Check the huge safety recall on it too.

The belt did seem tight to get on, but i have been assured its the correct belt for the machine, all it does is raps around the drum and then round the motor shaft.

I'm unsure now what could be the cause of this as @R_J has said i should have low resistance between red and black.

If i remove the belt and start the dryer would this indicate the motor is ok if it starts by itself of would the fact that it has no load mean the start winding is unused.

[pintglass]

Re: Tumble Dryer start capacitor

What could cause this to happen could I have damaged it while changing the belt I had to use a lot of force on the shaft to get the belt on.