Question about Bunn Pour-O-Matic VPR

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The heater no longer keeps the water hot. Warmer still works

Suddenly, with company coming for Christmas, of course, the unit decided to quit heating the water to brew the coffee. The warmer still works. Guess it is the heater or the thermostat.

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  • kents229 Dec 19, 2008

    Suddenly, with company coming for Christmas, of course, the unit decided to quit heating the water to brew the coffee. The warmer still works. Guess it is the heater or the thermostat.

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Hi, if your unit is a VPR, there are only 3 things that could cause the tank heater to not work, 4 if you count wire burn off. 1: your heating element has failed, blown open, and has no resistance ( measured by a meter device) 2: the thermostat has failed, usually they boil though, also just a simple switch, open or closed by the adjustment knob, measurable by a resistance meter also. 3: the hi limit has opened due to the tempurature in the tank getting too high, usually caused by evaperation of the water, and the level drops too low, from not pouring a pot of water in at least every other day. This also is a heat activated switch, that is closed all the time at room temp, when measured with a resistance meter. Your heat circuit MAY have an on/off switch too, but as long as this is on, that heat circuit runs 24/7. I would not advise it permanent, but you could jumper/bypass the hi limit and/or the thermostat to test, but if you do not know how to test it, at least take it to a shop and let them check it for you.You can go to www.bunnomatic.com or contact technical service, depending if you have a commercial unit or not.

Posted on Jan 04, 2009

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Unit no longer heats the water to brew coffee. Warmer still work


Hi, if your unit is a VPR, there are only 3 things that could cause the tank heater to not work, 4 if you count wire burn off. 1: your heating element has failed, blown open, and has no resistance ( measured by a meter device) 2: the thermostat has failed, usually they boil though, also just a simple switch, open or closed by the adjustment knob, measurable by a resistance meter also. 3: the hi limit has opened due to the tempurature in the tank getting too high, usually caused by evaperation of the water, and the level drops too low, from not pouring a pot of water in at least every other day. This also is a heat activated switch, that is closed all the time at room temp, when measured with a resistance meter. Your heat circuit MAY have an on/off switch too, but as long as this is on, that heat circuit runs 24/7. I would not advise it permanent, but you could jumper/bypass the hi limit and/or the thermostat to test, but if you do not know how to test it, at least take it to a shop and let them check it for you.

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1 Answer

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1 Answer

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