Question about Bunn Dual TF DBC Coffee Maker

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Have dual sh bunn softheat, keeps running water into main tank and wont stop. could it be solenoid hooked up to main water input and then goes from solenoid to top of main tank to feed coffeemaker

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Check the level probe first, then turn off power to machine and unplug, if it still fills then it is the solenoid.

Posted on Apr 27, 2010


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Posted on Jan 02, 2017


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I have a Bunn dual warmer coffee maker with a hot water faucet. The solenoid was recently replaced and now the hot water faucet runs at a trickle. What's wrong?

The "repair person" probably installed a defective replacement solenoid and came up with a fanciful story to avoid having to replace the replacement solenoid.

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One of 2 things. The water refill valve or high water probe is bad

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Remove and clean the spray head above the filter basket. If it still under fills, there could be a problem with the dispense solenoid valve.

Apr 22, 2014 | Bunn Dual SH DBC

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Bunn Dual only heating to 180-185F

Is there scale buildup on the heating element? Can you check the voltage of heating elements. They should read in the 208v range. If all checks out then I would change out the thermostat.

Jan 13, 2013 | Bunn Dual® (20900.0011)

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Hi I have a bunn commercial brewer. its a sh dbc brewer. the brewer keeps heating the water all thw way to 225 degrees and keeps going.

Sounds like the thermostat needs to be replaced adjusted or the probe to the thermostat is covered in scale, and it cannot read the temp correctly. Remove top panel and check probe, if fine no buildup, follow probe line to thermostat and set to a lower setting, if same problem replace thermostat.

Apr 02, 2011 | Bunn Dual SH DBC Coffee Maker

1 Answer

I have a Bunn Dual SH coffee brewer that does not dispense the same amount of coffee every time

The problem is either the liquid control board or there is something blocking the solenoid, or drawing water from the same line pressure. Also check the sprayhead for buildup.

Oct 26, 2009 | Bunn Dual SH DBC Coffee Maker

1 Answer

Breaker keeps tripping

Hello. Here is what I think, not looking at the unit myself, I would start by checking the heaters, both of them, and the heating circuit for a short to ground through the water, here is a link to the manual,

and from page 34 on has the proper diagrams. An electrician should be able to handle a resistance check of this circuit, with a multimeter. If not you need a repair person that can, look in your phone book for Restaurant repair service.
The other thing I have seen with these, is the solenoid coils have shorted out, and cause intermittent problems, but these usually blow the main board, this would be evident by black scorching either on the front or back of the board.

Hope that helped, and thank you.
Ask me if you need more help.

Apr 05, 2009 | Bunn Dual SH DBC

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