Author Topic: Vulcan dishwasher service manual wanted (Read 21014 times)

geekay · « **on:** February 02, 2008, 12:47:50 AM »

Hi from Australia,

Would you believe I cannot locate a service/repair manual for an early 1990's Australian made dishwasher ( Vulcan Dishlex Eco 500 ) despite hours of web searching and contacting the manufacturer.

The brand was taken over by the Electrolux company who don't have the manual.

Can anybody assist with the manual or a model close to it to enable control board diagnostics and general troubleshooting, diagrams etc..?

Thanks,

geekay
Australia
2nd February 2008

krooglik@bigpond.net.au

AJ · « **Reply #1 on:** February 05, 2008, 07:53:27 AM »

Hi,

I have not been able to locate one, sorry.

Did you find one yet?

What kind of trouble are you having with the dishwasher?

geekay · « **Reply #2 on:** February 05, 2008, 04:30:13 PM »

Hi AJ,

Thanks for trying to help out....

The d/w was put on a long wash cycle one night and, next morning it was still "working"...!

When opening the door you could still see the water (not sudsy) churning around....no control panel buttons were lit ..and I'd expected the machine to stop but it didn't.

Had to turn off at the power point. Turned on again later..same problem.

A technician was called and seemed to think it was a control board (circuit board) problem but could not discount other things. The cost of the circuit board was prohibitive ( More than half the cost of a then new machine..) so I decided to have a go myself with some initial guidance from the technician.

I have:

1) Removed and checked the water control valve solenoid..clean and worked fine under power (passed water okay)

2) Checked every hose, chamber, supply hose, spray arms etc..No blockages. Motor could be turned freely via a screwdriver slot at rear of main shaft which was protruding at base of machine.

3) Checked main door switch...It had 80 ohms resistance so swapped it with another s/h spare (zero resistance when activated).

4) Checked air operated pressure switch...2 main switches operated in 2 stages when blowing air through connecting tube...1st stage zero resistance..second stage "click" cut off the circuit/s.

5) Removed/cleaned/checked the membrane strip..all clean and tracks look intact. (Did not know further how to test it..?)

6) Checked continuity of temperature overload switch..okay on room temperature setting (did not test it with a heat source)

7) Reassembled it all...

When machine is turned on at power point...

a) Detergent dispenser solenoid clicks on (normally would not do this)
b) Only 4 of the 6 available cycles buttons beep, and light up.
c) The "one touch start " does not work at all
d) The "end" cycle button does not work at all
e) There was a momentary "flash" behind circuit board

Observations:

Because I don't have a detailed wiring diagram ( have the one that came in a plastic sleeve in the base of the d/w) I could only visually check circuit:

Did not appear to see any burnt/loose/damaged capacitors etc. The continuity was okay with every one I "tested".

I did notice a blackened mark under the clear cover of a relay connected to the heater circuit and it didn't look right.

I exchanged the control board with that of a an almost identical model but the same reaction occurred except it also activated the "eco" button so I reinstalled original control board.

So, AJ, sorry for the lengthy story...this is why I was hoping to get a more detailed service manual to allow a lay person to trouble shoot the control board and other steps to get this fine old machine back on its legs again.

Cheers,

geekay
6th February, 2008

JWWebster · « **Reply #3 on:** February 05, 2008, 07:29:45 PM »

the momentary flash on the control board remonds me of the time I found giant cockroach holding continuity for an arc welding machine. LOL

geekay · « **Reply #4 on:** February 06, 2008, 05:28:05 AM »

LOL.... similar to me..when checking why my Nokia wall charger didn't work and when opening it up found the poor, fried critters.

I wish my dishwasher problem was so simple...

Cheers,
Geekay
6.2.08

AJ · « **Reply #5 on:** February 06, 2008, 07:11:24 AM »

Quote

Because I don't have a detailed wiring diagram ( have the one that came in a plastic sleeve in the base of the d/w)

Could you scan and post the wiring diagram that you have so I could take a look at it?

geekay · « **Reply #6 on:** February 06, 2008, 07:40:51 AM »

Hi again,

Have scanned several images from the documentation on the dishwasher..hope they can help..!

Cheers,

geekay
7.2.08

AJ · « **Reply #7 on:** February 06, 2008, 12:34:40 PM »

Hmm, a little to small for me to read.

Guess the attachment size limit maybe to small.

You could try to post them in the photo gallery or just email a larger size to me and I can post it too.

RegUS_PatOff · « **Reply #8 on:** February 06, 2008, 02:50:12 PM »

hhmm.. I noticed the PROGRAM CHART shows a PARTY cycle

geekay · « **Reply #9 on:** February 06, 2008, 04:27:21 PM »

Hi again,

When I sent the diagrams I thought it might be too small but the original was a whopping 1.5 mB so I'll see if I can resend under the 150 kb limit..bear with me, thanks...
Fingers crossed...

Geekay
7.2.08

RegUS_PatOff · « **Reply #10 on:** February 06, 2008, 06:23:48 PM »

two pages are the same....

geekay · « **Reply #11 on:** February 07, 2008, 04:38:36 AM »

Sorry guys,

Doing file size conversions at midnight has its failings....oops..

Managed to get the 2 main circuits under 150 kb...here goes...

Thanks for being patient..

Geekay
7.2.08

AJ · « **Reply #12 on:** February 08, 2008, 06:45:22 AM »

Took a look and not sure what to say.
Maybe another tech will come along with a idea.

geekay · « **Reply #13 on:** February 08, 2008, 06:51:12 AM »

That's okay. I appreciate you offering to help.

This is a real challenge...hmmm...

Regards,
geekay

JWWebster · « **Reply #14 on:** February 16, 2008, 08:42:35 PM »

What are the symptoms again?

geekay · « **Reply #15 on:** February 16, 2008, 10:40:16 PM »

Hi,

The main symptoms are as below:

" The d/w was put on a long wash cycle one night and, next morning it was still "working"...!

When opening the door you could still see the water (not sudsy) churning around....no control panel buttons were lit ..and I'd expected the machine to stop but it didn't.

Had to turn off at the power point. Turned on again later..same problem.

A technician was called and seemed to think it was a control board (circuit board) problem but could not discount other things. The cost of the circuit board was prohibitive ( More than half the cost of a then new machine..) so I decided to have a go myself with some initial guidance from the technician.

I have:

1) Removed and checked the water control valve solenoid..clean and worked fine under power (passed water okay)

2) Checked every hose, chamber, supply hose, spray arms etc..No blockages. Motor could be turned freely via a screwdriver slot at rear of main shaft which was protruding at base of machine.

3) Checked main door switch...It had 80 ohms resistance so swapped it with another s/h spare (zero resistance when activated).

4) Checked air operated pressure switch...2 main switches operated in 2 stages when blowing air through connecting tube...1st stage zero resistance..second stage "click" cut off the circuit/s.

5) Removed/cleaned/checked the membrane strip..all clean and tracks look intact. (Did not know further how to test it..?)

6) Checked continuity of temperature overload switch..okay on room temperature setting (did not test it with a heat source)

7) Reassembled it all...

When machine is turned on at power point...

a) Detergent dispenser solenoid clicks on (normally would not do this)
b) Only 4 of the 6 available cycles buttons beep, and light up.
c) The "one touch start " does not work at all
d) The "end" cycle button does not work at all
e) There was a momentary "flash" behind circuit board

Observations:

Because I don't have a detailed wiring diagram ( have the one that came in a plastic sleeve in the base of the d/w) I could only visually check circuit:

Did not appear to see any burnt/loose/damaged capacitors etc. The continuity was okay with every one I "tested".

I did notice a blackened mark under the clear cover of a relay connected to the heater circuit and it didn't look right.

I exchanged the control board with that of a an almost identical model but the same reaction occurred except it also activated the "eco" button so I reinstalled original control board.

So, AJ, sorry for the lengthy story...this is why I was hoping to get a more detailed service manual to allow a lay person to trouble shoot the control board and other steps to get this fine old machine back on its legs again.

Cheers, "

*** Since then I have:

Swapped the Hot water relay on the control board with another one: no change.

Swapped Detergent relay with another one (because each time you turn on the power at the socket the detergent dispenser solenoid clicks "open" ) but the machine won't work any further : no change.

Can you read the circuit diagram I posted...?

Thanks,

Geekay
17th February, 2008

jumptrout51 · « **Reply #16 on:** February 17, 2008, 10:53:29 AM »

If I read your diagrams correctly your heater is supposed to boost water temp during the wash cycle.
In that case if the heater or heater circuit is defective the dw would run infinitely without the timer advancing thru cycles to off.
I found this to be a problem on a Whirlpool dw last year.
When you called for temp boost it would not heat the water to satisfy the temp boost circuit and ran continuosly. If you did not set temp boost it worked OK.

geekay · « **Reply #17 on:** February 26, 2008, 05:02:17 AM »

Thanks for the info.

My main wish is to be able to get the machine to start...at the moment when you turn the power point on it only clicks open the dishwasher solenoid..nothing esle...other wash cycles can be selected but the "start" buton does not activate any program.

I'm wondering why the dishwashing powder dispenser clicks on but no other program works..

Thanks,

Geekay
26th February, 2008

Kiwi_tech · « **Reply #18 on:** May 22, 2011, 09:48:27 PM »

Hey there,

Did anyone ever get to help you with this? or did you solve it? or did you just simply dump it and get a new one!

It seems no one seems to know anything about these at all....

Cheers
Shane

Kiwi_tech · « **Reply #19 on:** May 23, 2011, 07:03:31 AM »

Hi George,
Have copied your post here to clarify your issue...

I have asked a couple of questions below ..... also, have a few suggestions to try (if you can be bothered with it!)

1.you checked your pump motor and actually fed the required voltage (see what voltage the pump motor is, I would suspect 230/243VAC) into it to confirm it is spinning and not causing a short? If it is shorting then there could be a back voltage feed that is loading up the main board (just a hypothesis – not sure).... I say this because in your post you mentioned that the water was stil in the bottom .... which indicates to me that something went wrong when it went to pump out during the cycle.

2. Are there any machine fuses that may have blown? Or VDR’s perhaps? There is a VDR on the board that will blow and protect he main control board with it overloads (kind of an electronic protection ofr a circuit.) – take a look at my posting and you will see my photo and I have replaced that VDR I am sure it was a 285Volt AC VDR..... any electronics service shop will have them! 

3. Heating element ok? Have you tested the heating element to make sure it is not stuffed? Also check the connections and wiring to and from the heating element to make sure you do not have any high restance connections in the circuit.

I recently repaired a pie warmer machine that nearly caught fie due to high resistance connections (and a faulty capilary thermostat). All the wires were hardended and brittle due to excessive ressitance causing heat!!!!! Lots of it.

Cheers,

Perhaps we can assist one another to test the boards .....re can compare circuit ohms readings on each resistor and capacitor etc!!!!! Since mine actually works most of the time.... it could be a good working platform to work from.
Shane

PS. Apologies for the war and peace novel .... but just trying to help and logic is my best gift when coming to diagnostics.

YOUR POST SAID:
----------------------------------------------------------------------
Thanks for trying to help out....

The d/w was put on a long wash cycle one night and, next morning it was still "working"...!

When opening the door you could still see the water (not sudsy) churning around....no control panel buttons were lit ..and I'd expected the machine to stop but it didn't.

Had to turn off at the power point. Turned on again later..same problem.

A technician was called and seemed to think it was a control board (circuit board) problem but could not discount other things. The cost of the circuit board was prohibitive ( More than half the cost of a then new machine..) so I decided to have a go myself with some initial guidance from the technician.

I have:

1) Removed and checked the water control valve solenoid..clean and worked fine under power (passed water okay)

2) Checked every hose, chamber, supply hose, spray arms etc..No blockages. Motor could be turned freely via a screwdriver slot at rear of main shaft which was protruding at base of machine.

3) Checked main door switch...It had 80 ohms resistance so swapped it with another s/h spare (zero resistance when activated). Good , that would have been an issue

4) Checked air operated pressure switch...2 main switches operated in 2 stages when blowing air through connecting tube...1st stage zero resistance..second stage "click" cut off the circuit/s.

5) Removed/cleaned/checked the membrane strip..all clean and tracks look intact. (Did not know further how to test it..?)

6) Checked continuity of temperature overload switch..okay on room temperature setting (did not test it with a heat source)

7) Reassembled it all...

When machine is turned on at power point...

a) Detergent dispenser solenoid clicks on (normally would not do this)
b) Only 4 of the 6 available cycles buttons beep, and light up.
c) The "one touch start " does not work at all
d) The "end" cycle button does not work at all
e) There was a momentary "flash" behind circuit board When you say momentary flash, what do you mean?

Observations:

Because I don't have a detailed wiring diagram ( have the one that came in a plastic sleeve in the base of the d/w) I could only visually check circuit:

Did not appear to see any burnt/loose/damaged capacitors etc. The continuity was okay with every one I "tested".

I did notice a blackened mark under the clear cover of a relay connected to the heater circuit and it didn't look right.

I exchanged the control board with that of a an almost identical model but the same reaction occurred except it also activated the "eco" button so I reinstalled original control board.

So, AJ, sorry for the lengthy story...this is why I was hoping to get a more detailed service manual to allow a lay person to trouble shoot the control board and other steps to get this fine old machine back on its legs again.

Cheers,

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Author Topic: Vulcan dishwasher service manual wanted (Read 21014 times)