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Rob, Home Appliance Technician
Category: UK Appliance
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Experience:  20 yrs. experience with a major worldwide manufacturer.
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Zanussi ZDT 6053 Probable 10 years have swapped out the

Customer Question

Zanussi ZDT 6053 Probable 10 years
have swapped out the solenoid inlet valve as no water reaching wash chamber. can see it flowing through the decalcifier but it is not reaching the wash chamber. any ideas??
Submitted: 6 months ago.
Category: UK Appliance
Customer: replied 6 months ago.
very slow response
Expert:  bonzaco replied 6 months ago.

Hi can you give me the PNC number from the rating label inside the door frame.

Customer: replied 6 months ago.
Also tried putting water directly into machine but drains away and then the water lacking alarm sounds and beeps.
Expert:  bonzaco replied 6 months ago.

OK do you get an error code when it beeps? Secondly do you have any water in the base of the cabinet, not the wash cavity but below it?

Customer: replied 6 months ago.
One beep one flash. Doesn't appear to hold any water in the sump.
Expert:  bonzaco replied 6 months ago.

No but if you get a slight leak the flood protection device will activate and stop the appliance operating.

Customer: replied 6 months ago.
Don't appear to have any leak. No water under machine.
But would it be worth looking at??
Expert:  bonzaco replied 6 months ago.

Take it out, lean it on its back and pop the base off, check to see if you have water or water staining in the base pan.

Customer: replied 6 months ago.
Should be back home later and will try what you say and let you know how I get on.
Expert:  bonzaco replied 6 months ago.

OK should be having a break at 4 - 6 but then back online

Customer: replied 6 months ago.
No water, slight staining directly beneath the Drain Pump but no indication that that is where the staining originated.
Little staining on the two 10mm pipes on the sump just above the pump (one Clear and the other Grey, think they are about 10mm). Again no indication that either are leaking
Customer: replied 6 months ago.
Also had a good look at all pipework, joints etc and no indication of any leak or staining anywhere else
Customer: replied 6 months ago.
Are you still thinking of a solution to the problem. Joe
Expert:  bonzaco replied 6 months ago.

Do you have a multimeter?

Customer: replied 6 months ago.
Not at home at present and won't be back till Friday but I can borrow a multimeter from work if you do have any ideas. Thinking myself maybe one of the pressure switches or the loom on the door.
Expert:  bonzaco replied 6 months ago.

OK grab the multimeter and come back to me on Friday and we can go through it.

Customer: replied 6 months ago.
Didn't get back till just now 10pm so I'll send you a message in the morning if that is ok
Expert:  bonzaco replied 6 months ago.

OK just delivering the wife to work be back about 11am

Customer: replied 6 months ago.
Covers off and ready to go when you are.
Power on or off? Basic continuity checks or working voltages etc??
Customer: replied 5 months ago.
You were online a while back and was waiting for your suggestions.
Expert:  bonzaco replied 5 months ago.

OK first thing disconnect the supply to the solenoid and test to see if you have got 240 volts at the solenoid at the fill point.

Customer: replied 5 months ago.
240 there
Expert:  bonzaco replied 5 months ago.

Any water going in?

Customer: replied 5 months ago.
only if i connect solenoid valve up again
Customer: replied 5 months ago.
If I leave it disconnected, get the three beep audible alarm which according to the manual tells me the anti flood device is activated.
Expert:  bonzaco replied 5 months ago.

OK so you have water going into the water softener but not from the water softener to the wash tank?

Customer: replied 5 months ago.
Expert:  bonzaco replied 5 months ago.

OK you need to check the coil resistance on the solenoids on the water softener. They should be between 3 & 4 ohms

Customer: replied 5 months ago.
4 ohms exactly
Expert:  bonzaco replied 5 months ago.

OK you have two pressure switches attached to this appliance. round things with pipes goint to them. Check that the pipes are not blocked.

Customer: replied 5 months ago.
Already checked and no blockage, Gentle blow through and you can feel the switch mechanism flip.
Expert:  bonzaco replied 5 months ago.

OK one final thing - the flood protection switch in the base, is that operating?

Customer: replied 5 months ago.
polystyrene float - dry as a bone.
switch itself seems intact but haven't checked it for open circuit or anything.
Customer: replied 5 months ago.
Definitely in its lowest position though
Customer: replied 5 months ago.
that is you can hear it click when float is lifted
Expert:  bonzaco replied 5 months ago.

OK you need to check it for continuity it should change as you lift the fload

Customer: replied 5 months ago.
Awkward so bear with me while I remove bottom tray
Customer: replied 5 months ago.
OK got a piece of paper wedged in without removing tray.
Switch is closed when down and open when paper wedged underneath so continuity OK
Expert:  bonzaco replied 5 months ago.

OK well we have checked the solenoids, we know the pump works and that the pressure switches are not blocked. Only thing that has any further relevance is the main pcb - just have a look at that and see if there are any burnt tracks or breaks in cables.

Customer: replied 5 months ago.
Bingo!! Orange Brown Brown Blue in that order of main plug into PCB.
First of the brown cables Burnt possibly a spill would you say?
I'll have a go at clean up and solder, and let you know how I get on.
Hopefully the damage is just limited to that, If not may be more economical to replace the whole machine.
Didn't see main PCB as a replacement that is still available anywhere.
Expert:  bonzaco replied 5 months ago.

Yes likely and would cause the pcb to be damaged. Likely we could get the pcb repaired if your diy doesnt work. Come back to me when you have it resoldered.

Customer: replied 5 months ago.
OK thanks for your help. We'll leave it at that for tonight and I'll be in contact with the results of the repair. Joe
Expert:  bonzaco replied 5 months ago.

ok speak soon

Customer: replied 5 months ago.
All good with the repairs, needed a little track repair on PCB as well. Thanks for all your help.
Kind Regards Joe