[andy2]

Re: Danfoss electronic stater?

If it worked with an ordinary relay then its not a 3 phase BDC motor as current to these is controlled electronically. It would be interesting to know what exactly this device does! It certainly seems over the top for a compressor does’nt it?.

By the way Dave the thermistors are PTC devices that are used on compressors (the resistance rises as the temperature rises) but I realise it was just a slip of the finger 😉

Andy

[andy2]

Re: Danfoss electronic stater?

Kirk wrote:Sorry Dave nothing like that I have used that type 25+ years.

This one fits on the side of Danfoss pot is about 6 inches square 2 inches thick has a great big alloy heat sink on it and loads of electronics in it.

I can only see it as a starter as there is no wiring going back to anything

Thanks again Kirk

Sounds like it might be an inverter unit for a 3 phase BDC motor

Andy

[andy2]

Re: Mistral Mystery

OK thanks – its -6 deg according to the manual but i have a thermistor so i will give it a whizz nothing to lose.

Thanks

Andy

[andy2]

Re: Mistral Mystery

All the thermistors seem OK and respond to temp change. Also defrost cycle is OK would’nt the evap therm affect defrosting?

What makes you say it is this Dave please?

Andy

[andy2]

Re: Length of manufacturer’s guarantees

Gorenje also carry a standard two year parts and labour guarantee with five years on the more expensive machines.

Andy 😀

[andy2]

Re: Detecting out of balance condition

Having re-read the article it does say that the device is dual axis so presumably it has two accelerometers one operating in the vertical and the other in the horizontal plane. This would allow errors to be compensated for by comparison of the signals.

[andy2]

Re: Detecting out of balance condition

If you noticed this paper was presented in 1999 and i don’t think that these things have appeared on any machines as yet except possibly some more expensive ones?

The accelerometers used on the washers will be of the low g type so not exactly the same as the airbag ones.

As dpm says the device senses tub vibration so really is independent of motor type etc. There are several types of these devices. The analogue peizo types have a crystal sandwiched between a weight (mass) and the accelerometer case which is connected to the vibrating wotnot (the tub in our case). Because of the weights inertia the crystal is subjected to pressure/stretching as the tub moves and consequently produces a charge output proportional to the acceleration (vibration). Another type uses a peizo resistive material producing a resistance that varies with the pressure.

The devices mentioned in the paper also have the signal processing included on chip and can produce a digital output suitable for direct connection to the microcontroller.

You would think that this would provide enough OOB info without any need for motor current sensing etc as it gives a direct reading of exactly what the tub is doing. One of the things that would present a problem i would think is the transverse sensitivity of these peizo devices when used on a wm tub. We know that the movement of the tub is not just in on direction (up and down) but follows a circular motion ie. it has a side to side motion too. This would result in the crystal being subject to shear forces as the weight resists movement from side to side, these shear forces would produce an erronous charge that would be indistinguishable from the true one. I suppose it would be possible for one signal to cancel out the other.

No doubt they will have overcome this somehow possibly by using two crystals??

Andy 😀

[andy2]

Re: Zanussi T/D not drying TC470

If the tank is filling then it is obviously taking some moisture out of the clothes.

Have you checked that the fan belt has a twist in it as it will not dry properly if it has’nt. (fan goes in wrong direction).

Andy 😀

[andy2]

Re: Hotpoint TDC30 T/dryer

Thanks for your help everyone, it appears the problem is the contacts in the timer

Andy 😀

[andy2]

Re: Hotpoint TDC30 T/dryer

Thanks very much for that Jim, very much appreciated.

Victor i will check that out. thanks

Andy 😀 😀 😀

[andy2]

Re: Hotpoint TDC30 T/Dryer

OK Thank you gentlemen for your help, I will probably play it safe and get the gen stat.

Andy 😀

[andy2]

Re: Hotpoint TDC30 T/Dryer

Thanks Dave

I had an idea it was 60deg and i have one of them in stock, but not sure.

Andy 😀

[andy2]

Re: indesit w143s uk

funkyboogy wrote: no neutral to d/sw..

Thats probably why its dead! Try bypassing the s/w to confirm. If its the module with IDC connectors on CND/C/B. The interlock goes to pads 4 & 7 on module e/conn CNF probably the driver triac Q5 (MAC97A8) has blown (or possibly a track). If its the earlier module then its still CNF but not sure which triac. Its not too hard to stick another one in if you have a scrap board for a triac source. Its always worth a try!

If it does restore the neutral then don’t forget to change the interlock before you try it.

Andy

[andy2]

Re: parts/technical helpline

It would be really good if all the info on the various manufacturers DVD’s etc could be made available from a central point. I know this idea has been kicked around before but it would be invaluable especially to most of the one man business who can in no way justify the extortionate prices charged for this info. It would not be so bad if you could keep what you have paid for, but to add more insult they time limit the disks.

I think that you guys that are so willing to share this info that you have paid for are brilliant, Poor old Dave seems to do spend most of his time looking up part numbers for people but never seems to complain. Personally i have received several service manuals off generous members who offered them freely when i was in need.

It does seem unfair though and if there was some way that we could share the cost of making this info available to all it would be a really good addition to the site.

Andy 😀

[andy2]

Re: HPT mistral baffle / fridge thermistor (FF72)

andy2 wrote:

Also do you know where the fridge thermistor is situated on these? I thought it was on the baffle assy, but there are two black wires to the motor and two white which i assume give feedback to the controller on baffle position (error EA).

Andy 😀

I think there is some confusion here. I did not say that i had an EA error. But that EA was associated with no baffle feedback.

Andy 😕

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