BUNN
®
OPERATING & SERVICE MANUAL
BUNN-O-MATIC CORPORATION
POST OFFICE BOX 3227
SPRINGFIELD, ILLINOIS 62708-3227
PHONE: (217) 529-6601 FAX: (217) 529-6644
28791.0001B 1/00 ©1998 Bunn-O-Matic Corporation
AF PR-2
AF PR-3
AFPR-3 VERSION DISCONTINUED
The information in this manual
is no longer current.
Page 1: ...CORPORATION POST OFFICE BOX 3227 SPRINGFIELD ILLINOIS 62708 3227 PHONE 217 529 6601 FAX 217 529 6644 28791 0001B 1 00 1998 Bunn O Matic Corporation AF PR 2 AF PR 3 AFPR 3 VERSION DISCONTINUED The info...
Page 2: ...cations to this warranty or to make additional warranties that are binding on Bunn Accordingly statements by such individuals whether oral or written do not constitute warranties and should not be rel...
Page 3: ...switches high level low level and a center OFF position 7 Place the main ON OFF switch and ON OFF refill switches in the OFF position 8 Make sure all hoses are connected Connect the dispenser to the...
Page 4: ...y TROUBLESHOOTING A troubleshooting guide is provided to suggest probable causes and remedies for the most likely problems encountered If the problem remains after exhausting the troubleshooting steps...
Page 5: ...the main power switch These allow each circuit to operate independently of the other P2052 C PROBE CONTROL BOX LOW OFF HIGH On models equipped with a dual level probe there is a LOW OFF HIGH switch l...
Page 6: ...Fuse Holder for test procedures See page 8 Refer to Service Main ON OFF Switch for testing procedure See page 9 Refer to Service Probe System See page 10 Refer to Service Circuit Board for testing pro...
Page 7: ...es to plug in the dispenser COMPONENT ACCESS WARNING Disconnect the dispenser from the power source before the removal of any panel or the replace ment of any component All components are accessible b...
Page 8: ...BOARD P1556 O F F O N O F F O N O F F O N SERVICE Location The circuit board is located inside the autofill box mounted on the right side of the vacuum switch mounting Test Procedure 1 Disconnect the...
Page 9: ...lace the fuse 28791 1 011500 BLK from Main Wiring Harness BLK to Main ON OFF Switch FIG 5 FUSE HOLDER TERMINALS P1331 Removal and Replacement Fuse 1 Remove the cap from the fuse holder 2 Removefusefro...
Page 10: ...o the main ON OFF switch Disconnect the white wire from pump 1 3 Check for voltage across the black wires removed from the switch and the white wire removed from pump 1 Connect the dispenser to the po...
Page 11: ...oss the signal cable pins see Fig 8A 6 If readings match values indicated the probe system electrically is functioning properly If not check the probe boxes 5 With the probe box switch in the LOW posi...
Page 12: ...diagrams and check the dispenser wiring harness 5 Check for continuity across the switch terminals with the switch in the ON position Continuity must not be present when the switch is in the OFF posi...
Page 13: ...from the pump leads 2 Disconnect the input and output tubes 3 Removethefourthumbscrewssecuringthepump head to the pump body discard pump head with tubes 4 Remove the two 8 32 keps nuts securing the pu...
Page 14: ...p head cavity 4 Push down and turn the key counterclockwise to guide the tubing deep into the pump head cavity as shown in Fig 19 5 Hold the tubing and rotor in the pump head and remove key carefully...
Page 15: ...32 keps nuts securing the pump and bracket to main panel 5 Disconnect the yellow and white wires from the pump 6 Remove pump and bracket as an assembly 7 Disconnecttheinputtubesfromthevacuumswitch to...
Page 16: ...16 28791 1 011500...
Page 17: ...17 28791 1 011500...
