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way to test 52 watt Ulka?
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cleanplanets
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Posted Sat Jul 13, 2013, 10:19pm
Subject: way to test 52 watt Ulka?
 

hi there, the pump in my machine has stopped working and still trying to figure out what the issue it.... is there a way to test the pump? is there a resistance test or something similar I can try?

Thanks.
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cleanplanets
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Posted Sat Jul 13, 2013, 11:03pm
Subject: Re: way to test 52 watt Ulka?
 

I did a continuity test between the 2 spade connectors on the pump and there was no resistance, no continuity.... Does anyone know if there should be resistance between these connectors?
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DavecUK
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Posted Sun Jul 14, 2013, 2:08am
Subject: Re: way to test 52 watt Ulka?
 

cleanplanets Said:

I did a continuity test between the 2 spade connectors on the pump and there was no resistance, no continuity.... Does anyone know if there should be resistance between these connectors?

Posted July 13, 2013 link

How old is the pump?
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qualin
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Posted Sun Jul 14, 2013, 3:13am
Subject: Re: way to test 52 watt Ulka?
 

cleanplanets Said:

I did a continuity test between the 2 spade connectors on the pump and there was no resistance, no continuity.... Does anyone know if there should be resistance between these connectors?

Posted July 13, 2013 link

No resistance implies that there is a direct short across the connectors. No continuity implies there is infinite resistance across the connectors. Which one is it? :-)

As well, Ulka pumps have a diode in them, try reversing the probes on the spades and see if you get resistance.

 
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jonr
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Posted Sun Jul 14, 2013, 6:11am
Subject: Re: way to test 52 watt Ulka?
 

If you get no continuity when testing in both directions, then you probably need to replace the pump.
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cleanplanets
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Posted Sun Jul 14, 2013, 11:05am
Subject: Re: way to test 52 watt Ulka?
 

qualin Said:

No resistance implies that there is a direct short across the connectors. No continuity implies there is infinite resistance across the connectors. Which one is it? :-)

As well, Ulka pumps have a diode in them, try reversing the probes on the spades and see if you get resistance.

Posted July 14, 2013 link

sorry , I wasn't sure which one so I said both :P    there is no continuity between the connectors, when reversing the testing probes there is still no continuity.... would that mean that this pump is infact damaged?

the date code on the pump is 08/10/08...... how long do they usually last?
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Posted Sun Jul 14, 2013, 11:15am
Subject: Re: way to test 52 watt Ulka?
 

It sounds shot, 5 years if used a lot is a good lifetime for it.

 
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DavecUK
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Posted Sun Jul 14, 2013, 11:34am
Subject: Re: way to test 52 watt Ulka?
 

cleanplanets Said:

sorry , I wasn't sure which one so I said both :P    there is no continuity between the connectors, when reversing the testing probes there is still no continuity.... would that mean that this pump is infact damaged?

the date code on the pump is 08/10/08...... how long do they usually last?

Posted July 14, 2013 link

It depends on how old the machine is, or when the pump was placed within it if it's already been replaced.  Although it's a safe assumption that it's probably 4 or 5 years old.,,,To be honest I normally expect around 7 years out of them, although they can fail in 5. you could simply put mains voltage across the pump and see what happens, or check the leads to the pump when the machine is on and see if there is any voltage getting to the pump.

Dave
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cleanplanets
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Posted Sun Jul 14, 2013, 11:47am
Subject: Re: way to test 52 watt Ulka?
 

DavecUK Said:

It depends on how old the machine is, or when the pump was placed within it if it's already been replaced.  Although it's a safe assumption that it's probably 4 or 5 years old.,,,To be honest I normally expect around 7 years out of them, although they can fail in 5. you could simply put mains voltage across the pump and see what happens, or check the leads to the pump when the machine is on and see if there is any voltage getting to the pump.

Dave

Posted July 14, 2013 link

hi dave, I do get voltage to the pump leads...122 volts.... how would I put  mains voltage across the pump?
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cleanplanets
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Expertise: Just starting

Posted Sun Jul 14, 2013, 11:49am
Subject: Re: way to test 52 watt Ulka?
 

also... the espresso machine was produced in 2005 and the pump is from 2008 so it looks like its been replaced already..... i think this machine has been sitting for some time thought which may have compromised the pump?
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