Re: Expobar water temperature
Also, have you done a descale recently? If. Of there could be lots of ware scale in the HX loop insulating the brew water from the temp in the boiler.
Also, doesnt the office have a boiler pressure gauge on it?
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Re: Expobar water temperature
Thanks Kevin. I havent taken off the covers so dont know if the schematic I have is the same for my machine and if it has a thermostat. The wand /pressure gauge is a good idea. I agree that the English system is antiquated, especially since we dumped the King. AU kicked out the Queen? I didnt know.
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Re: Expobar water temperature
I believe this is an HX loop machine. Which means the temperature is set by boiler pressure. So as far as I can see you need to up the boiler pressure a tiny bit.
Id be wondering why it dropped (maybe the spring in the pressurestat is a getting a bit tired). Im also wondering why it has a thermostat - if it is an HX I cant see how it could use one!
Anyway - if youre seeing 150 (I assume F - heathen units :
) then you only have about 0.25bar pressure in the boiler (so steam will be not very impressive). To get to 100C you need basically 1bar. Adjustments on most pressurestats are a bit twitchy though (in my limited experience). Id be wanting a pressure gauge so I knew I wasnt making a bomb in the kitchen when adjusting... You can do a cheapie with a piece of 8mm fuel hose on the steam wand and a pressure gauge. Wont be 100% accurate, but should give an indication.
Most of the machines Ive had have been about 1.1 to 1.25 bar.
Hope this is of some help.
/Kevin
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Expobar water temperature
I have an Expobar Office Pulsar that I bought in 2006. The water temperature has been gradually dropping to around 150 degrees, as measured at the hot water dispenser. And crema is almost nonexistent. I have read that these machines run hot. How do I make it run hot again? I have an excellent location diagram for the thermostat and pressurestat, and am pretty handy at repairing machines. Any help is much appreciated.Tags: None
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