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Re: Bosch Exxcell 1200 WFO2465 not spinning/rinsing just was
gegsy wrote:Possibly an NTC,Pressure switch or module problem.
Greg
so without knowing and wasting more money best just buy a new machine
Re: Bosch Exxcell 1200 WFO2465 not spinning/rinsing just was
aqualectric wrote:
aqualectric wrote:
Heater can have an earth leak and still appear to function. A multimeter is not capable of testing the heater with an applied 500V. The heater is the likely culprit.Power off before any investigation. :plug:
A.
To remove the heater:- Undo the nut to the end of the thread and tap the stud in. Remove the wires. Then gently prise the heater out with a screwdriver.
Testing the heater:- You need to read my post again. This site will not condone live testing. Bench testing the heater is both pointless and dangerous. You MUST not attempt this. The heater is not designed to work out of water and will fail quickly. This is pointless. The heater could be live and if you touch it……:zap: This is dangerous. Even if you don’t touch it, feeling it get hot proves nothing. You already said in your original post that the water was warm. 😕 The integrity of the heater’s insulation is in question here and if you do not have an insulation tester that will perform a 500V earth leak test in controlled conditions then it cannot be done safely.
But I’ve already told you what is wrong. 😕
A.
Have fitted brand new heater and still have same problem????????
Re: Bosch Exxcell 1200 WFO2465 not spinning/rinsing just was
aqualectric wrote:Heater can have an earth leak and still appear to function. A multimeter is not capable of testing the heater with an applied 500V. The heater is the likely culprit.
Power off before any investigation. :plug:
A.
How easy is it to remove as it looks difficult?
Also can i bench test it by applying 240v to it to see if it heats up?
nomadPaul wrote:Try it on a cold wash and see if it progresses to the end as normal. If it does work normally then there is a 99{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} probability that its the heater.
Feeling heat through the door is no real test. The only way to make 100{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} sure is to do a continuity test of the heater element itself. It’s resistance should be about 28ohms .
POWER OFF IF TESTING
tried cold wash and it fininshes okay.
tested heater element is 26 ohms
So not sure what problem might be. Any further suggestions anyone. Much appreciated.
Re: Zanussi DE6744 endless cycle
Penguin45 wrote:Relay or solder breakdown on the pcb, almost certainly.
Penguin45.
Many thanks for your reply.
i was starting to think it would be the pcb. Is this the main board and i assume its in the door behind the buttons somewhere? Do you happen to know where it is located.
Also do you know if there is a techs manual or wiring diagram for these machines.
best regards and seasons greetings to you and yours…
Re: Zanussi DE6744 continually washes never stops
Can’t believe i posted back in August and still haven’t fixed this machine properly… Anyway here is an update.
Have moved machine onto blocks so i can get under it when its working. Problem still is that it doesn’t always heat the water and programme runs endersley.
Heater shows 24ohms across coil signifying its okay. I have strapped a multimeter to the coil to watch the voltage. I’m running a 70c programme whic starts with a hot pre wash so i know that in the first few minutes the water should be hot. On the first 5 times of running 70c my multimeter goes to 220v a.c signifying applied voltage to heater. When i feel the front door i can feel its warm. On opening the door in cycle i can see that its warm inside and the water is hot. So working okay. I have ended the cycle and restarted all good so far……
Now on the sixth time the water isn’t getting hot and my meter doesn’t read any voltage on the coil….
Do i think the heater as i though before is all good and something else is causing the problem. As said before the metrix chamber thing all looks clean to me and pipes etc. If anything there is the occasional black smudge in the pipes but you can see that this is just a smear on the pipe nothing that would cause a blockage.
Any ideas. Previoulsy a pressure switch was mentioned but im not sure what ti looks like and where i can find it!
Any help please gratefully appreciated.
UPDATE:
think i found the pressure switch item # 911888011/01
it has a short across it. have removed the connectors from it and the machine starts initally then stops with the programme light flashing. thus assume it should have a short on it. Reconnected and machine working again but not doing the obvious heating still.Re: Zanussi DE6744 continually washes never stops
Thanks penguin45 for your reply.
I initialy tipped the machine onto its side and investigated from the bottom. This matrix chamber apperas to look clean. Can this be removed and opeend for cleaning just in case?
Also are you saying that the pressure switch is located in the side panel? Any ideas what it looks like!
Thanks
Re: Zanussi DE6744 continually washes never stops
I have moved the machine to the laundry so i can work on it better.
I have checked the Heating element and it has 24 ohms across the terminals signifying i think that its not open circuit and should be good! I have removed the covers on the inside of the machine where the water comes in and out and cleaned.
I have run a 65 wash and have sat by the machine to check. It clearly has run a cold rinse first then extracted the water and the the wash programme. I have opened the door and the water was hot!
Not sure if just moving it has fixed it or what? But saying that i think it was doing this before because when it was stuck once i tried a differrernt programme and it apperared to work. Anyway i will run a few programmes to check.
In the meantime any ideas? As it wasn’t heating the water before and seemed to be stuck on the rinse programme. So if its not the heating element what else could it be?
Re: Zanussi DE6744 continually washes never stops
Penguin45 wrote:Um, close, not quite………
A typical programme comprises cold pre-wash, hot wash, cold rinse, hot rinse leading to drying by residual heat. If there is no heat at those specific steps, the programme will hang, waiting……. So, it should complete the pre-wash at least and advance to the heat sequence. If it does, check for continuity through the heater, burnt out wiring at the heater and burnt out contacts on the pcb itself (The heater is switched by a relay).
However……..
If the programme is hanging in the prewash stage, the problem lies with the IWMS system. This is the water matrix under the l/h side panel. It will slowly choke and ultimately become blocked with congealed food deposits which will prevent the water level switch from operating. The fill will cut out on the pneumatic shut-off to the fill valve, whilst remaining electrically active. In theory, the machine will wash, but the programme will not advance, as it thinks it isn’t full. Bit of bumf HERE may help.
Penguin45.
I have retested and run the top programme 70 which is a HOT prewash, main wash upto 70c, 1 cold rinse, 1 hot rins and active dry. As said before the system doesn’t actually hang! It just continues to wash or rinse not sure how i would actually know which one was which. Anyway having said that when i ran the 70c for 10 mins i opened the door and the water was stone cold. Should be hot as it should be doinga HOT prewash or moved onto the main wash which would be hot.
I will test the heater and the tubes etc. Thanks for the information and help.
Re: Zanussi DE6744 continually washes never stops
Penguin45 wrote:Does it heat? Programme stops to heat – if it never gets to temperature, the programme won’t complete.
Penguin45.
Thanks for your response penguine45.I will run a programme again. but i dont think it does as the water is always cold at the bottom and the door doesn’t get warm like it would usually if it was heating. So i take it that when it does a cold rinse and then a hot because its not heating it wont and will keep doing the cold rinse! is that correct. I take it there is an elemet then somewhere. Any ideas on where so i can have a look and check it.
