Question about Bunn Dual TF DBC Coffee Maker

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I have a Bunn/TF DBC that we keep having boards and heating elements going out on them (we have placed 3 different Machines)...I have had electricians telling me that the building power is fine and the it is not their lines...any ideas.

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If the electricians are saying that the lines are and that there are no brownouts, then I would open the front panel on the machine and check that the terminals wires are correct, then the plug, then the outlet(I have been to places where the ground and neutral have been swapped at the outlet). If all that is correct, use your voltmeter to check incoming power between the red and black wires for 220 and the red and white, and black and white for 110. For so many heating elements and boards to go out, tells me that either the machine is running out of water, and the elements are overheating but the hi-limit reset switch should have caught it in time to save element. If you still have the old boards I would check them to see which part burnt out then you can have an idea if it is a power thing or water or solenoid or level control.

Posted on Sep 16, 2010

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