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Bunn Margarita Machine Ultra 2 Slush Granita Maker Questions & Answers
Bunn Ultra 2 slushee machine not freezing
Hmm, that's definitely a problem! From what I understand, the Bunn Ultra-2 slushy machine is supposed to freeze evenly on both sides. So if it's only freezing on one side, there could be a few different things going on. It could be an issue with the refrigerant level, the solenoid, or the optical sensors. Can you tell me a bit more about the symptoms of the problem? For example, is the side that's not freezing completely warm, or is it just not getting as cold as the other side?
What does shaft maintenace due mean
It means your machine needs to have seals and bushings replaced. This maintenance should be performed twice per year to keep your Bunn Ultra 2 in working order. This is something you will need to call a technician in to do.
It says sensor open
the sensor board is in the back behind the motor cowlings. open one up and the board is in front of the motor. check the wire harness to it, and check to see that it is not damaged. there should be a red and a clear sensor sticking up from it.
Oil coming out of back of machine
it isn't oil, it's old, syrupy slushie mix and dust. the only oil in the machine is inside the hermetically sealed (cannot open) compressor. you have a front seal problem. the shaft seal in the front inside the evaporator (steel tube), and the cup-shaped seal between the auger and the evaporator. slush is getting inside the shaft tube and dripping through the inside rear of the machine. replace the seals, lube with a food-safe lube and refill.
Paddle does not turn
What does the display say? the shaft has an optic sensor. if the shaft pins or the sensor board are broken, it'll say sensor error. if the torque springs are broken, replace the shaft.
Bunn ultra-2 not icying up
make sure it's on ice, not chill or off. clean the rear filter and make sure there is at least 6 inches of space behind the machine for it to breathe.
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