30 or, Weak product Water temperature, Whipper motor | Bunn HC-3

TROUBLESHOOTING (cont.)
PROBLEM	PROBABLE CAUSE	REMEDY
Product overflows container	1. Dispense switch	Refer to Service - Dispense
		Switch for testing procedures. See
		page 18
	2. Dispense solenoid valve	Remove the solenoid valve and
	(Hot or Cold)	clear any obstructions. Rebuild or
		replace the valve if necessary. See
		page 30 or 31
Weak product	1. Water temperature	Place an empty container beneath
		the dispense tip. Initiate a dispense
		cycle and check the water tempera-
		ture immediately below the dispense
		tip with a thermometer.
		(A) Reading for mechanical thermo-
		stat models should be 180° F to 200° F
		(see thermostat temperature settings
		decal in USER NOTICES on page 3.
		(B) Reading for electronic thermo-
		stat should be185° F to 190° F.
		Adjust the control thermostat to in-
		crease or decrease the water tem-
		perature. Replace if necessary.
	2. Whipper motor	Refer to Service - Whipper Motor for
		testing procedure. See page 20
	3. Frother	Refer to Service - Frother Compo-
		nents. See page 20
	4. Dispense solenoid valve	Refer to Service - Dispense Solenoid
	(Hot or Cold)	Valve for test procedures. See page
		30 or 31
	5. Auger drive	Refer to Service - Auger Drive Com-
		ponents. See page 12
	6. Auger spring	Refer to Service - Auger Drive Com-
		ponents. See page 12
	7. Auger motor	Refer to Service - Auger Drive Com-
		ponents. See page 14

10	27591 031597

Image 10

Bunn HC-3 30 or, Weak product Water temperature, Tip with a thermometer, Stat should be185 F to 190 F, Whipper motor

Contents

Bunn HC-2 Serial # HC00025000 UP Warranty Introduction 12368.0002 User Notices27620.0000 Electrical HOOK-UP Initial SET-UPElectrical Requirements Plumbing Requirements Dispenser USE CleaningAdjustments Cold Beverage SET-UP Optional Draining the HOT Water Tank TroubleshootingHopper Dispense Rate of Product Troubleshooting Problem Probable Cause Remedy Problem On stainless steel surfaces can Problem Probable CauseDripping from dispense tip Lime build-up Ing in serious leaks 30 or Weak product Water temperatureTesting procedure. See Tip with a thermometer Troubleshooting Problem Probable Cause Remedy Contents ServiceComponent Access Auger Drive Components Washer Auger Motor Locknut Dust Seal Shoulder Screw Auger Drive ComponentsIf voltage is present as described, proceed to #5 Hopper Assy Service Right HC-2 Ballast Test ProcedureLocation Location Mechanical Thermostat Remove temperature probe from the tankControl Thermostat Electronic Thermostat Optional Control Thermostat Thermostat Terminals Dispense Switch Dispense Switch Test Procedures FAN Ring Frother and Whipper MotorSteam Collector #6-32 Screw Mixing Chamber Pull the mixing chamber 2 out of the whipper chamber Frother and Whipper Motor Whipper Motor Terminals Hopper Delay Board Reconnect the eight pin connector to the hopper delay board HOT/COLD Switch Optional Disconnect the wires from the switch termi- nals Lamp Holder Lamp Replacement Refer to FigDoor Assy Service Level Control Board and Level Probe Level Control Board and Probe Level Board Terminals Limit Thermostat Overflow Protection Switch Overflow Protection Switch RUN/RINSE Switch RUN/RINSE Switch Solenoid Valve Cold Water Optional Cold Water Solenoid Valve Cold Water Solenoid Terminals Solenoid Valves Dispense Disconnect the water line from the solenoid valve Solenoid Valves DispenseSolenoid Valve Inlet Solenoid Valve Inlet Tank Heater Tank Heater Switch Refer to when reconnecting the wires to the tank heaterTank Heater Tank Heater Switch Tank Heater Switch Terminals Transformer 240V TWO Wire MODELSONLYcont Schematic Wiring Diagram HC-2, & HC-3 Schematic Wiring Diagram HCA-2, & HCA-3