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- This topic has 4 replies, 3 voices, and was last updated 16 years, 5 months ago by
chrisbly.
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October 19, 2009 at 9:33 am #49419
chrisbly
ParticipantHi there
I have a Candy Washer model CNA135-80 which will not stop spinning. 🙁
It does the rest of the program but once it gets to the spin portion of the cycle the pump runs continously even after the drum is dry. The machine also runs through the standard spin process, slow for a while ramps up to 1300 spins a minute or two then stops spinning while the pump is still going then starts spinning again.
It will do this for hours if not turned off manualy.
Fault occurs on all programs.
Pump drains the water away quickly so I don’t think it is faulty.
I have removed the pump and hoses and given them a good clean removing all scum.I can hear the pressure switch click if pressure applied but have not metered it as I thought this only detected fill level and was not part of the draining process.
I can not find any sensor that detects that the drum is empty and assume it is time based? 😕
Any ideas much appreciated.
Chris. 🙂
October 21, 2009 at 12:46 am #299870tictok
ParticipantRe: Candy CNA135-80 wont stop spinning
Hello-
I have a Hoover time 1300 / H160E which has recently developed exactly the same problem as the post above (sorry to jump on your thread chrisbly). Am I right to believe Hoover and Candy washing machines are somehow related?
The machine will go all the way through any program, until the spin cycle and and then seems to get stuck in a infinite loop during the spin cycle. It will run through the standard spin process, slow for a while, then ramps up to speed, spins for a minute or so then stops spinning, does its pumping thing, stops pumping and then starts the process again but spinning in the other direction.
A couple of weeks ago the washing machine stopped spinning / turning all together, so I checked and replaced the brushes which were nearly completely worn away (one was showing copper). Now at least the motor works again but I’m stuck with the endless spin cycle.
Any ideas?
I have two very amateur theories;
1) Perhaps the new brushes (purchased from UK whitegoods) don’t have a good enough contact with the motors communicator at high speed.
or
2) Maybe the off-center load detector is kicking in (does this machine have one?) and stopping the spin completing so the machine tries again?
Any help for me or the OP would be hugely appreciated!
Many thanks in advance.
StefOctober 21, 2009 at 1:43 am #299871aqualectric
ParticipantRe: Candy CNA135-80 wont stop spinning
If the new brushes were at fault, you would likely hear a crackling, arcing noise and the motor would be erratic. If the filter trap is clear (at the front behind the kickstrip) then there is probably an issue with the PCB module. (computer unit).
Candy make Hoover so they are essentially the same animal. If the PCB has been traumatised by worn brushes (down to the copper wire could have damaged the motor armature and it is shorting slightly) then the only answer is a new PCB module. These boards are very sensitive and a shorting motor or a water drip onto the pump below will fry the electronics. And they do. Often.
There are several PCB boards for these machines and all run differing programming. There are also PCB boards available that are termed “not configured” which means they will need programming on installation by the engineer. You also have to consider if another component caused the board to fail, as you have to build that into your calculations. Add the motor and the PCB together and things start to get costly.
A diagnostic is required by an engineer before you throw good money away. The machines are worth repairing and an engineer’s fee is cheaper than buying bits you don’t need. It also makes your decision a whole lot easier and quicker.Hope that helps,
Steve.
October 21, 2009 at 8:36 am #299872chrisbly
ParticipantRe: Candy CNA135-80 wont stop spinning
Thank you for the reply.
The motor runs smooth when I had the cover off and no arcing even during the ramp up to full spin speed. I can not see any water stains on the motor. The filter trap was clear and I had stripped down the pump and hoses.
It does drain correctly but seems not to advance the timer from the spin cycle in any of the programs. If I advance the timer manualy past the spin it will go through one more fast spin and then turn off like it should and release the door lock.Could it be linked to the element going down to earth? I have read this some postings.
The one thing I don’t understand is how does the WM now when to stop spinning, is there any sensor system? water level, motor torque monitoring or is it solely program timer based?
October 21, 2009 at 11:54 am #299873tictok
ParticipantRe: Candy CNA135-80 wont stop spinning
Just wanted to let you know, incase it helps anyone else in the future, that I’ve managed to fix the endless spin problem on my washing machine.
Turned out it was a problem with the brushes (even though they are new) and possibly the motor armature.
I suspect that there wasn’t a good enough connection between the brushes and the motor. At lower speeds this wasn’t really an issue and so the washing machine was able to progress through the different parts of the program.
At higher speeds however (i.e. during a fast spin) I think that the connection between brushes and motor was either lost completely, or caused so much sparking and arcing that the motor shorted. Either of these caused the spin to stop, which the washing machine then attempted again, and again, and again – never reaching full speed and never being able to end the program.
To remedy this, I removed the motor, took off the brushes & cleaned the motor armature with a really very fine (nearly soft to the touch) sandpaper until it had a nice copper shine again, all the time being very careful not to scratch it.
Next, I could see that the new brushes had started to wear a little more in one area than anywhere else and decided that the tip of the brushes was not quite the optimum angle. So I sanded these down a little to change the tip angle (didn’t take much as the carbon is fairly soft). I then refitted the brushes.
Nearly there, but to ensure I had a decent contact between brush and motor, I wrapped a strip of very thin, fine sandpaper tightly around the motor armature with the rough side facing outwards (so that the sand paper was inbetween the armature and the brushes). Turning the motor caused the sandpaper to wear the correct curve and shape into the brush tips to ensure the correct fit.
Finally, with the sandpaper removed, I refitted the motor, plug the washing machine back in and set it on a spin cycle.
Worked perfectly and a lot quieter than I ever remember it being! The washing machine has just finished its second full load of washing, so I reckon thats a success and time to push and manhandle it back under the counter top. Yay! 😀
Hope that helps someone!
Thanks
Stef
p.s. A note to amateur DIY’er like myself – With all the water, electricity and moving parts I think there’s a huge potential for a nasty accident – so please always unplug before you tinker. I’m sure there are a few beasty components in there too that can carry a charge long after the machine has been unplugged…. careful careful ❗ 💡 ❗ -
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