Manuals / Bunn / Kitchen Appliance / Coffeemaker

Bunn System III manual TROUBLESHOOTING cont Problem, Probable Cause, Remedy

Models: System III

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TROUBLESHOOTING (cont.)

Problem

Brew cycle will not start (cont.)

Probable Cause

3.ON/OFF switch

4.Start switch

5.Timer

6.Dispense Valve

7.Digital Brewer Control

Remedy

Refer to Service - ON/OFF switch for testing procedures. See page 28

Refer to Service - Start switch for testing procedures. See page 32

Refer to Service - Timer for testing procedures. See page 34 or 35

Refer to Service - Dispense valve for testing procedures. See page 21

Refer to Service - Digital brewer controls for testing procedures. See page 22 step 4

Automatic refill will not operate

1.No water

2.Water strainer/flow control (.500 GPM)

Check plumbing and shut-off valves.

(A)Direction of flow arrow must be pointing towards the right.

(B)Remove the strainer/flow con- trol and check for obstructions. Clear or replace.

3.Limit thermostat (Electro/me- chanical and Digital Brewer Control)

4.Overflow protection switch

Refer to Service - Limit thermostat for testing procedures. See page 27

Refer to Service - Overflow protec- tion switch for testing procedures. See page 29

5.(A) Level control board & level probe. (Electro/mechanical)

(B)Digital Brewer Control Assem- bly (DBC)

Refer to Service - Level control board for testing procedures. See page 25

Refer to Service - Digital brewer control for testing procedures. See page 22 step 2

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Bunn System III manual TROUBLESHOOTING cont Problem, Probable Cause, Remedy

Contents

OPERATING & SERVICE MANUAL BUNNSYSTEM BUNN-O-MATICCORPORATIONWARRANTY USER NOTICES 12364.0000 10044.000020201.5600 00831.0000 00656.0000Models with digital brewer control assembly ELECTRICAL REQUIREMENTSElectrical Hook-Up Models with electro/mechanical thermostatsADJUSTING BREW VOLUMES INITIAL SET-UPelectro/mechanical brewers Models with digital brewer control assemblyADJUSTING BREW VOLUMES cont CLEANINGBREW SELECTOR SWITCH ON/0FF Warmer SWITCHTROUBLESHOOTING ProblemProbable Cause RemedyRemedy TROUBLESHOOTING cont ProblemProbable Cause TROUBLESHOOTING cont ProblemProbable Cause RemedyWater from tank is not hot cont TROUBLESHOOTING contProblem Probable CauseTROUBLESHOOTING cont ProblemProbable Cause RemedyTROUBLESHOOTING cont Problem Weak beverage contProbable Cause RemedyTROUBLESHOOTING cont ProblemRefer to Service - Digital brewer con trol for testing procedures. See pageContents SERVICECOMPONENT ACCESS SERVICE cont BYPASS VALVE FIG. 2 BYPASS VALVESERVICE cont BREW SELECTOR SWITCHBREW SELECTOR SWITCH cont SERVICE contSERVICE cont CONTACTOR ASSEMBLY ELECTRO/MECHANICAL ONLYCONTACTOR ASSEMBLY ELECTRO/MECHANICAL ONLY cont SERVICE contSERVICE cont ONLYFIG. 8 CONTROL THERMOSTAT SERVICE cont DISPENSE VALVE SERVICE cont DIGITAL BREWER CONTROL BOARD AND DISPLAY DBCTION, ENTRY AND DESCRIPTION DIGITAL BREWER CONTROL BOARD AND DISPLAY DBC cont SERVICE contSERVICE cont TRIAC/HEAT SINK ASSEMBLY DBC ONLY SERVICE cont SERVICE cont SERVICE cont LIMIT THERMOSTAT SERVICE cont ON/OFF Warmer SWITCH SERVICE cont OVERFLOW PROTECTION SWITCH SERVICE cont SOLENOID VALVE Refill FIG. 23 REFILL SOLENOID VALVESERVICE cont SOLENOID VALVE Refill cont SERVICE cont START SWITCH Location SERVICE cont TANK HEATERFIG. 27 TANK HEATER TIMER ELECTRO/MECHANICAL ONLYEARLY MODELS SERVICE contSERVICE cont DIGITAL TIMER ELECTRO/MECHANICAL ONLY LATE MODELSFIG. 31 DIGITAL TIMER SERVICE cont Timer SettingFIG. 32 DIGITAL TIMER WIRING PageWARMER ELEMENT SERVICE contPage LOWER27362 092900092900 Page27362 Page LOWER27362 092900