Troubleshooting guide

JDF Silver Series Training Manual
20
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rellable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ttingandcleaninletvalvestrainer.
□ Usingyourhandandunscrewthevalveadaptertting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ve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lter.
□ Usingyourhand,grabthemeshltertrianglehandleandpulltheairlterfromthedispenser.
□ Washtheairlterinwarmsoapywateranddry.
□ Usingaashlight,shinethelightthroughthecondensertocheckfordirtbetweenthens.Inspectcondenserns
for straightness. Go to the next step of Cleaning the Condenser.
□ InspectVelcrostrapsforadhesiontoairlter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ns.