Update on my no-start problem.
As Trev suggested I checked the steam thermoblock power.
Heating element - two terminals at the top of the thermoblock. 45R to 50R. - measures 48R - check!
Thermal cutout - lower left of thermoblock. close to 0R. - measures 0R - check!
Thermistor - upper left of thermoblock. resistance depends on temp. - measures 100k at 20C - check!
Thermal fuse - lower right of thermoblock in a white silicone sleeve clamped under a small metal plate. 0R resistance. - measures O/C - found it!
OK what temperature is this fuse set for? All the writing on the fuse is very faded/rubbed, so difficult to read.
It has a Brown tip on it, and my memory says that should indicate its temperature. Look up Prof. Google and all I get is confused.
Back with the magnifing glass and I think I can just make out 220C. Hope thats right 8-(
Quick trip to Jaycar and they have 216C for $3.50 each. So Grab three, just in case, plug one in, and hey presto up an ready in two minutes, just like old times! Happy coffee maker again.
Thanks for your help Trev.
Now two questions to ask.
1. Are these really 220C? Anyone?
2. Why did it pop in the first place? Dodgy fuse? Blockage in the steam system causing less water to pump and therefore less cooling? Anyone?
Steve
As Trev suggested I checked the steam thermoblock power.
Heating element - two terminals at the top of the thermoblock. 45R to 50R. - measures 48R - check!
Thermal cutout - lower left of thermoblock. close to 0R. - measures 0R - check!
Thermistor - upper left of thermoblock. resistance depends on temp. - measures 100k at 20C - check!
Thermal fuse - lower right of thermoblock in a white silicone sleeve clamped under a small metal plate. 0R resistance. - measures O/C - found it!
OK what temperature is this fuse set for? All the writing on the fuse is very faded/rubbed, so difficult to read.
It has a Brown tip on it, and my memory says that should indicate its temperature. Look up Prof. Google and all I get is confused.
Back with the magnifing glass and I think I can just make out 220C. Hope thats right 8-(
Quick trip to Jaycar and they have 216C for $3.50 each. So Grab three, just in case, plug one in, and hey presto up an ready in two minutes, just like old times! Happy coffee maker again.
Thanks for your help Trev.
Now two questions to ask.
1. Are these really 220C? Anyone?
2. Why did it pop in the first place? Dodgy fuse? Blockage in the steam system causing less water to pump and therefore less cooling? Anyone?
Steve

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