Bunn H5M Service Manual

H5MOPERATING & SERVICE MANUALBUNN-O-MATIC CORPORATIONPOST OFFICE BOX 3227SPRINGFIELD, ILLINOIS 62708-3227PHONE: (217) 529-6601 FAX: (217) 529-6

10SERVICE (cont.)Limit ThermostatLocation:The limit thermostat is located on the tank lid.To test the limit thermostat, access will also be needed to

11SERVICE (cont.)Safety Overflow SwitchLocation:The safety overflow switch is located inside the rear of the dispenser inside the copper overflow cup.Tes

12SERVICE (cont.)Solenoid ValveLocation:The solenoid valve is located inside the rear of the dispenser on the right side near the bottom.6.

13SERVICE (cont.)Tank HeaterLocation:The tank heater is located in the tank lid.Test Procedure:1. Disconnect the dispenser from the power source.2.

14FIG. 10 THERMOSTAT WIRINGBLU/BLK to Limit ThermostatBLK to Terminal BlockP1782SERVICE (cont.)ThermostatLocation: The mechanical thermostat is locate

15SERVICE (cont.)Liquid Level BoardLocation:The liquid level board is located inside the lower panel.Test Procedure:1. Disconnect the dispenser fr

1615. Move the probe’s flat end to the dispenser housing. The indication must be 0.16. Move the probe’s flat end away from the dis-penser housing. Th

17Location: The contactor is located on the component bracket inside the lower rear panel.Test Procedures:1. Disconnect the dispenser from the

18BLK to left Tank HeaterRED to Terminal Block(L2)BLK to TerminalBlock (L1)RED to Right Tank HeaterBLK to LimitThermostatRED from Main HarnessP1725FIG

194312LIQUIDLEVELBOARDBLU/BLKTANK HEATER120 VOLTS A C2 WIRE + GNDSINGLE PHASE10243.0000E 01/07 © 1987 BUNN-O-MATIC CORPORATIONSCHEMATIC WIRING DI

210267 012609BUNN-O-MATIC COMMERCIAL PRODUCT WARRANTYBunn-O-Matic Corp. (“BUNN”) warrants equipment manufactured by it as follows:1) All equipment oth

20WIRING DIAGRAMS4312LIQUIDLEVELBOARDBLKSW&THERMOSTAT10262.0001B 04/09 © 1999 BUNN-O-MATIC CORPORATIONSCHEMATIC WIRING DIAGRAM H5MA, 230V CEL1

3CONTENTS Warranty ...2 Introduction ...3 User N

4ELECTRICAL REQUIREMENTSCAUTION - The dispenser must be disconnected from the power source until specified in Initial Set-Up.The H5M dispenser requires

5INITIAL SET-UPCAUTION - The dispenser must be disconnected from the power source throughout the initial set-up, except when specified in the instructi

6TROUBLESHOOTINGA troubleshooting guide is provided to suggest probable causes and remedies for the most likely problems encountered. If the problem

7TROUBLESHOOTING (cont.)Problem Probable Cause Remedy Automatic refill will not oper-ateafter drawing hot water.Water flows into the tank con-tinu

8TROUBLESHOOTING (cont.)Problem Probable Cause Remedy Water boils continuously.Dispenser is making unusual noises.Ready indicator will not li

9SERVICEThis section provides procedures for testing and replacing various major components used in this dispenser should service become nec