Bunn FMD-4 Operating & Service Manual

15, Bunn FMD-4 15 SERVICE (cont.) RED to BRN/WHI from Control Board #1 J3-3 RED to WHI/RED from Control Board #1 J3-2 RED to WHI/ORN from Control Board #1 J3-1 RED to WHI/YEL from Control Board #2 J3-3 BLKtoGRNfrom Control Board J3-4 P1639 FIG. 3 AUGER MOTOR TERMINALS FIG. 4 AUGER DRIVE COMPONENTS Locati…

37, 37 P2641 FIG. 34 INLET SOLENOID VALVE TERMINALS SERVICE (cont.) WHI from Main Harness 7. Disconnect the dispenser from the power source. If the sound is heard as described and water will not pass through the solenoid valve, there may be a block- age in the water line before t…

33, 33 SERVICE (cont.) FIG. 27 HOT/COLD SWITCH P2635 HOT/COLD SWITCH (Optional) Location: The hot/cold switch is located on the left side of the whipper motor mounting panel. Test Procedure: 1. Disconnect the dispenser from the power source. 2. Disconnect the four pin plug from the…

23, 23 Test Procedure: 1. Disconnect the dispenser from the power source. 2. Open the dispenser door and remove the bottom door cover. 3. Disconnect the wires from the door intercon- nect wiring harness to the dispense switch to be tested. 4. Check for voltage across the black and re…

10, 10 TROUBLESHOOTING (cont.) PROBLEM Water is not hot (Cont.) Spitting or excessive steaming Dripping from dispense tip Water flows into tank continuously PROBABLE CAUSE 4. Tank Heater Switch 5. Relay (120V versions only) 6. Control Board #2 (120V versions only) 1. Lime build-up CAUTION …