Re: Help! Ive broken my Gaggia!
Ok so Ive just had a neighbour pop over with his trusty multimeter and both thermostats have 0.3 to 0.4 ohms through them so thats ok according to the post above. The fuse is still intact as theres continuity either side of it. It seems the element has blown as theres 21 ohms in one and "infinite" (his words) in the other. I bow to his superior knowledge when he told me theres no surer sign that the element is cactus.
So new question. I need to buy a new boiler. I see they have them on Dibartolis fairly cheap but they are currently out of stock. Are their other suppliers in Australia that I may be able to purchase one through?
Its 18 hours since my last coffee and Im not sure how much longer I can take this torture!
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Re: Help! Ive broken my Gaggia!
Ok thanks. This morning I had a look at it again and it looks like I have connected the wires to the top of the boiler incorrectly. (Even after going to the trouble of numbering them off I still managed to bugger it up somehow.) I have circled the 2 connections I had reversed. In this picture they are in the correct order. Im no electrician but I suspect I have blown a fuse or thermostat. The blue wire is power and connects the top element (in the picture) and has an inline fuse. Presumanbly the purple wire transfers power to the opposite element. Out of that element the grey wire runs into the thermostat.

What I did was have the purple and the blue back to front so the power went straight into the bottom element and then out the grey into the thermostat. What an idiot. Have I blown the fuse? Are they easy to replace or have I blown a fuse and the thermostat?
Many thanks again.
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Re: Help! Ive broken my Gaggia!
thermostats and fuse should be closed circuit when cold and go open circuit when reach temp, temp fuse will blow and stay open circuit if it trips, and will need replacing.
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Re: Help! Ive broken my Gaggia!
Did you fill the boiler by running the pump with the steam valve open? If not that might be what you did wrong. Just a guess.
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Re: Help! Ive broken my Gaggia!
Thanks for the information and the welcome. Please keep the replies coming.
Just wondering how or why the machine isnt working or what I did to bugger it up. I was so chuffed at myself for pulling it to bits and then getting it working again only to see it stop after an hour or so. Very disappointed.
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Re: Help! Ive broken my Gaggia!
Welcome Muz... [smiley=thumbsup.gif]
You could try contacting Supreme Roasters here... http://www.supremeroasters.com.au/contact-us and they may be able to help you out...
Mal.
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Re: Help! Ive broken my Gaggia!
Thermofuses and thermostats can be checked with a multimeter, you should see very low resistance say .4 ohms stable from one side to the other, when they are out of the circuit and cold of course!
-Rick
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Help! Ive broken my Gaggia!
Hi,
Ive broken my Gaggia and I need some help please. For some background this is the story so far.
The unit is a Gaggia Coffee Deluxe manual espresso machine which recently was leaking water through the group head. By searching and reading this forum I diagnosed a group head gasket replacement was in order. I ordered one of those from the good people at Dibartoli and it arrived lickety split. After consulting this website page http://www.bluebox.com.au/jcrayon/gaggia/ I decided to give changing the gasket a crack. Anyway as I had some time on my hands I decided to disconnect all the wires (after taking a dozen photos and numbering all of the connections) and remove the boiler unit to give it a proper seeing to. I removed the shower holding plate and took the bolts out for the group body to get internal access to the boiler unit. Anyway, long story short I cleaned it all up, and I mean shiny clean, replaced the gasket and put it back together, taking care to get every wire connected back in the right place.
When I turned it back on the little red power light came on to signify power and then 5 minutes later the green light came on as it should. I clicked the bottom button to pump the water through and everything worked perfectly. Nice clean, hot water through the shower screen. A couple of minutes later steam came out of the shower screen and a lot of it. I just looked at it and thought it must be just water sneaking its way back into the various pipes and nooks and crannies in the machine. After a minute or so the steam stopped. Came back an hour later and the green light has gone out and the boiler unit and group body are cool to the touch. The pump still works if you flick the switch over.
This is the schematic for the Gaggia if that helps. http://www.partsguru.com/user/ER0077-01.PDF
So in summary, the pump works, theres power but the water is not getting heated. Im thinking one of the thermostats is cactus or the fuse (part 47 on the schematic) has something to do with it. How do I check or test a thermostat to see if that is the problem. Do I have to go to a coffee machine guru or can a sparkie help me? Is there something else that may be the problem if its not the thermostat?
If this is not DIY fixable could someone please suggest a repairer in Brisbane.
Many thanks in advance if anyone does reply to this. I apologise for the lengthy first post but I thought it was better to have too much information than not enough.
MuzTags: None
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