Proper monthly maintenance of your machine results in a cleaned and well-maintained machine that ultimately will sell more product. We recommend the machine be cleaned once every month and the filter 1 to 2 times per month. This may need to be more frequent depending on the type of product you put into your machine (e.g., dairy based products will require more frequent cleaning).

The information below is a simple step by step process you can follow to keep your machine clean and in working order. This content is specifically geared toward a BUNN ULTRA machine; however, the steps discussed will broadly apply to any slush equipment you may use.

Frazil customers can order a Frazil Maintenance and User Training Guide. The poster is a 24” x 18” comprehensive guide to provide direction on how to care for your machine, understand the electronic menu display, and trouble-shoot common problems. We recommend that the guide be prominently displayed on your wall near the 3-bowl sink. Frazil customers can order training guides here.

To properly clean your machine, you need the following items:

• A Health Code Approved 3-bowl Sink
• Water
• Food Grade Sanitizer
• Mixing Jugs
• Clean Wash Towel / Paper Towels

Step 1: Drain the Machine.
Start by turning the ice chill button to “Off.” Note, that each side operates independent of each other. This button is below the display screen and is marked by a small snowflake. Next drain the product out the machine, making sure the machine is completely empty. Using lukewarm water, rinse the remaining product out of the hopper. Once the hoppers are empty turn the auger to the “off” position. This button is located near the snow flake button that turn the machine off. Press the button until the display screen reads “Auger Off”.

Step 2: Remove the Faucets and Handles.
To remove the handles, grab one side of the handle firmly and pull. This will disconnect one side. Repeat for the other side. Once the handle is removed, slide the faucet straight up, removing it from the hopper. Remove the spring and the faucet seal from back of the faucet. Be careful with the seal when removing it to prevent damage.

Step 3: Remove the Hopper, Auger and Drip Tray.
Unplug the light lids and set aside. Press the hopper lock on the bottom left side of each hopper. Remove the product sensor. Lift slightly and pull the hopper towards you to remove the hopper. Remove the auger from the cooling drum. Remove the hopper seals from the flange on the back of the cooling drums. Remove the drip tray by sliding it back from the machine. Remove the auger nose bushing from inside the front hopper.

Step 4: Clean the Machine.
Place the faucet, spring, nose bushing, handle, drip tray, auger, hopper, and seals inside the sink with warm water. The process is to Wash, Rinse and Sanitize. Do not scrub hopper with an abrasive brush, this will scratch the hoppers. Instead wash the hoppers with warm water, dish detergent, food grade non-abrasive disinfecting wipes, and a little elbow grease. You may also choose to use a terry cloth towel. Next clean the auger, drip tray, handle, faucet, spring, nose bushing, and seals being careful to remove product that may be stuck to these parts. Use food grade sanitizer and place clean parts in the sink and then allow all parts to air dry Using food grade sanitizer spray the cylinders, upper drip tray and wipe clean. You can also wash the back-motor housings and the front of the machine with sanitizer. Wipe clean.

A dirty filter is the number 1 problem with these machines. The filter is the entire rear of the machine. You can remove the filter by pulling down, out and up using the two tabs on the filter. Remember even the machine has to breath. Wash the filter under hot water until the water runs clear. Then replace the filter by placing the bottom in the bottom track and snapping back into place. The filter should be cleaned every 15 days.

Run the light lid under warm water and rub with a cloth to remove excess product. While the lights are water resistant you should avoid completely submerging them.

Step 5: Reassemble the Auger, Hopper and Drip Tray.
Replace the hopper seals on the flange on the back of the cylinder. Start with the flat part of the seal towards the machine. From the bottom work your way around the flange until the seal is snug against the back of the cylinder. This is the most important piece of the machine as it keeps all the product inside of the hopper. Replace the augers and turn until the auger clips into the slotted part of the machine shaft. Once in place you will not be able to turn the auger with your hand. Replace the auger then push down on the cylinder to level the barrel, this will help prevent tank seal leaks by keeping pressure on the top portion of the seal.

Replace the auger nose bushing inside of the front of the hopper. Slide the hopper and push back until the hopper drops into place and locks. Ensure you haven’t pinched the hopper seal. This is what a pinched seal will look like. A pinched seal will cause product leak outside of the hopper. (Get a clearer picture of the pinched seal)

Step 6: Attach Handles and Faucets.
First inspect the seal for any creases or damage. If the seal is in-tact, carefully replace the faucet seal and spring inside the faucet. The seal is designed to fit only one direction. Slide the faucet into place on the hopper. Replace the handles by hooking the post on the hopper. Push on the handle to ensure you have assembled the faucet correctly. Use your hand to ensure the seal is still in place.

Step 7: Place Product into the Machine.
Remove product from the refrigerator and poor carefully into the machine. Mix more product to ensure the machine is filled to the “Max” fill line. Check to ensure the product is not leaking from the drip tray, back, side, or bottom of the machine. If you see product leaking, drain the product and replace the tank seal. Replace the product sensor. Replace the light lids and plug them in. Replace the drip tray.

Step 8: Turn the Machine “On”.
Turn the power button on by pushing the button on the top left of the LED screen. Push the snow flake button on the right and left side until the screen says “ICE” in capital letters. This should turn on the augers as well, if not press the auger button until the auger starts to spin. The screen will say auger on. Hold the “ULTRA” button for four seconds to reset the filter needs cleaning message. This will appear 30 days after reset. Check for leaks one more time to ensure the product is not leaking from the machine.