Back from 2 week holiday and the Bezzera (BZ99) is suddenly playing up. Pretty standard inside so same theory should apply to many basic HXs.
Heats up ok, maintains temp with heating cycles so pressostat seems to turn on and off ok. Can pour a shot after heating up ok (vibe pump seems good), but after about 25 minutes of the machine being on, the relay opens. Then I can no longer pull a shot and the boiler no longer heats.
Only inputs to GICAR are boiler min level, boiler max level and tank level. I can't see it being the inputs.
Is this a symptom of a GICAR on the way out? Any other thoughts?
Heats up ok, maintains temp with heating cycles so pressostat seems to turn on and off ok. Can pour a shot after heating up ok (vibe pump seems good), but after about 25 minutes of the machine being on, the relay opens. Then I can no longer pull a shot and the boiler no longer heats.
Only inputs to GICAR are boiler min level, boiler max level and tank level. I can't see it being the inputs.
Is this a symptom of a GICAR on the way out? Any other thoughts?
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