Question about Bunn Dual® (20900.0011)
I have a Bunn Dual 120/208 brewer and after the heating elements turn off the water temperature is only at approximately 180-185F and the green ready lights don't turn on. This model is from 2003 and I recently bought it used. Everything else seems to be working fine except the water temperature seems to be a bit low. If I have read online correctly, the temperature should be about 200-205 in the tank and about 195 (+/- 5 degrees) coming out the spray heads. I put a thermometer directly into the tank and verified it's only at 180-185. Any ideas what's causing this? The temp probe in the tank has some light green corrosion on it but it doesn't seem too bad. The thermostat control knob is also turned completely on. Any input would be appreciated!
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.
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Posted on Jan 02, 2017
Yes it is possible to go the the next larger element.
Yes if the machine was plumbed there would be a difference in the way it brewed the water temp. if you look at the end hose in the pan from the solenoid, it takes a while for it to pour out 3liters.
Try using a different sprayhead(if yo;u are using a 6 hole try getting a 5 hole. That will constrain the flow of water a little more allowing the element more time the heat the water.
Posted on May 16, 2009
THe most likely answer is that the tube that leads to the sprayhead is clogged with lime. You will need to remove the spray head wich is located above the brew basket and make sure the holes are not clogged with lime. Use a wire brush to clear them. In the field I would use a deliming spring but you may need to go to a lowes or home depot to find a tool you can use to clear the tube wich is what the spray head screws onto or just goole deliming spring and try to order one off line. It is a long flecible very tightly wound dpring about 14 inches in length or so. www.midstaebeverage.com
Posted on Nov 16, 2010
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