I have an old Grindmaster Espressimo that I have been refurbishing. Out of the blue the heating element started acting funny. It arced and melted, so I replaced it, but the new one is also running hot. The plastic on the top around the terminals actually melted away. Any ideas as to what could be causing this? The wattage is the same as the previous two I have had in there, and slightly less than factory. I checked the connections and they are tight.
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