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Preventive Maintenance
In order to maintain proper operation and long service life BUNN recommends performing the preventive mainte-
nance every 6 months. Individual customers will vary with some customers choosing not to receive preventive main-
tenance. Some of the PM items may require more frequent maintenance depending on the site conditions.
Tools Required:
• Standard screwdriver
• 8 inch crescent wrench (2)
• Needle Nose Pliers
• Velcro Tape
• Graduated measuring cup
• Refractometer
• Thermometer
• Flashlight
• 5 gal. bucket
• Tube PM Kit BUNN PN: 39690.0000 (1 per dispense station)
• Kay-5 Sanitizer (50 Count BUNN P/N: 24634.0001) (200 Count BUNN P/N: 24634.0000)
• BUNN refillable container (BUNN P/N: 39302.0000)
• Condenser Cleaner
• Rubber gloves
• Safety goggles or face shield
• Fin Comb
• Mild non abrasive detergent and cloth
• Vacuum with soft brush attachment
Prior to servicing the dispenser:
• Sanitize the dispenser before you begin the preventive maintenance process.
• Disconnect the water and electrical supply.
• Assess placement of dispenser to perform PM process.
• Check and make sure you have the necessary safety equipment for cleaning the condenser.
• Remove the lower splash panel.
• Remove the right side panel.
PM Steps
Step1: Remove inlet valve connector fitting and clean inlet valve strainer.
□ Using your hand and unscrew the valve adapter fitting and set aside.
□ Using the needle nose pliers gently grab the strainer tab and pull the strainer out of the valve.
□ Clean and rinse strainer of any sediment or mineral build-up.
□ Re-installation is the opposite of removal.
Step 2: Replacement of lamp in lighted door assembly.
□ Using a standard screwdriver, remove the five screws securing the outer door cover to the inner door.
□ Disconnect the door switch connector or connectors from the auxiliary switch CBA and set door cover aside.
□ Gently grab the failed lamp and rotate half turn until lamp connection studs are aligned up with lamp socket
opening and remove lamp.
□ Re-installation of new lamp is the opposite of removal.
Step 3: Remove and clean the mesh air filter.
□ Using your hand, grab the mesh filter triangle handle and pull the air filter from the dispenser.
□ Wash the air filter in warm soapy water and dry.
□ Using a flashlight, shine the light through the condenser to check for dirt between the fins. Inspect condenser fins
for straightness. Go to the next step of Cleaning the Condenser.
□ Inspect Velcro straps for adhesion to air filter and dispenser and be ready to replace after cleaning of the
condenser.
Step 4: Cleaning the condenser.
□ Using a soft cleaning brush attachment, gently vacuum the condenser coil fins.
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JDF Silver Series Training Manual
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