Bunn S/N SNG0033000 & UP Consistently high or low beverage Brew Volume adjustment, Sprayhead

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TROUBLESHOOTING (cont.)

 

 

Problem

Possible Cause

Troubleshooting Procedures

Consistently high or low beverage

1. Brew Volume adjustment

Adjust the brew volume as required

level in server.

 

to achieve the recommended volume

 

 

for each brew cycle.

Dripping from sprayhead.

1. Brew Valve

Repair or replace leaky valve.

Water overflows filter.

1. Type of paper filters

BUNN paper filters should be used

 

 

for proper extraction.

 

2. No sprayhead

Check sprayhead

Beverage overflows server.

1. Beverage left in server from previ-

The brew cycle should be started

 

ous brew

only with an empty server under

 

 

the funnel.

 

2. Brew Volume adjustment

Adjust the brew volume as required

 

 

to achieve the recommended volume

 

 

for each brew cycle.

Weak beverage.

1. Type of paper filters

BUNN paper filters should be used

 

 

for proper extraction.

 

2. Coffee

A sufficient quantity of fresh drip

 

 

or regular grind should be used for

 

 

proper extraction.

 

3. Sprayhead

B.O.M. sprayhead should be used

 

 

to properly wet the bed of ground

 

 

coffee in the funnel.

 

4. Funnel Loading

The BUNN paper filter should be

 

 

centered in the funnel and the bed

 

 

of ground coffee leveled by gentle

 

 

shaking.

 

5. Water temperature

Empty the server, remove its cover,

 

 

and place the server beneath the

 

 

sprayhead. Place empty funnel over

 

 

the server entrance, with ON/OFF

 

 

switch in the "ON" position press the

 

 

Brew switch and release it. Check

 

 

the water temperature immediately

 

 

below the sprayhead with a ther-

 

 

mometer. The reading should not

 

 

be less than 195˚F (91˚C).

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35879.1 071405

 

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Contents Phone 217 529-6601 FAX 217 Single TF DBCBUNN-O-MATIC Commercial Product Warranty Table of Contents User Notices Electrical HOOK-UP Volt ac single phase Hz models37881.0002 230 volt ac Single phase, 60 Hz models Electrical Requirements Models without power cordPlumbing Requirements CE RequirementsPlumbing HOOK-UP Batch Selector Switches Main ON/OFF SwitchON/OFF Switch Enable Brew Brew SwitchCoffee Brewing Initial SetupCleaning Glossary Programming Programming SwitchesProgramming Switch Recipes Program Functions LevelDRIP-OUT Times Continues to D LevelReturns to a Return to a Program Flow DiagramContinues to Programming the Brewer Procedure for modifying units of measure Units Setting Units of MeasureSET NEW Recipe Procedure for Setting the RecipeThis function allows the operator to set Brew Sizes DONE? SET NEW RecipesRefer to SET Pulse Brew for description Card Contains Recipe for Procedure to program the coffee nameReview RECIPES? Noyes Procedure for reviewing recipes Review RECIPES/MODIFY RECIPES/SET UP no Name Coffee NamesNext To exit, press Next until the display reads ThatScreen Brew OZ Setting or Adjusting Brew VOL- UmesReview Recipes BypassModifying pulse brew Range 1st on time off to 4 minutes SET Pulse BrewSET Pulse Brew NO-NAME ModifyshownextSET Pulse Brew Easy Pulse Setup TIMES? SET Pulse Brew Enter TimesDONE? Batches DONE? SET PreinfusionSetup Complete Assign Recipes Enable ADS?Assign Recipe ? SET Ready SET TempScreen Spray OZ/M Calibrate Flow Bypass OZ/MCalibrate Spray .. Press Brew to Start Calibrate Flow Procedures to calibrate the bypass flow rateStart Procedures to view/reset the brew counters Procedure to set funnel detectBrew Counters Funnel Detect optionalTesting individual components outputs Service ToolsProcedure to test components outputs Brew ValveFrequency Nothing PressedProcedure to set factory defaults Factory DefaultsTroubleshooting Procedures TroubleshootingScreen Displayed Possible CausePress ON/OFF to terminate the cycle TemperaturePress ON/OFF to terminate the brew cycle ON/OFF switch was pressed after the brew cycle was startedTank Heater failure Triac FailureWires shorted to housing, or to Temperature Sensor ProbeWater shut off to brewer Broken or not making connectionBrew switch Switch test procedures Equipment will not operate No power or incorrect voltageBrew Valve Switch test procedures Data plate within +/- 10%Overflow Protection Switch When this condition occurs, Troubleshooting Problem Possible CauseWith power removed from brewer Holding it in open state See above or boilingHeating Time TOO Long Limit ThermostatTroubleshooting Problem Server Pointing towards the brewer Inconsistent beverage level StrainerImproper water pressure 90 psi 138 and 620 kPaWater temperature Consistently high or low beverage Brew Volume adjustmentLevel in server For each brew cycleRemove and clean lime off tank heaters Troubleshooting Problem Possible Cause Weak beverageBrewer is making unusual noises Plumbing lines Water Supply Tank HeatersSchematic Wiring Diagram Single TF DBC Schematic Wiring Diagram Wire Single Phase Schematic Wiring Diagram Single TF DBC