Lavit LB115 Series Troubleshooting Manual
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Lavit LB115 Series Troubleshooting Manual

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Troubleshooting Guide LB115
Series Lavit Dispenser
FOR TECHNICAL ASSISTANCE
PLEASE CALL 1.855.750.5377
18-11-26-REV-A

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Summary of Contents for Lavit LB115 Series

  • Page 1 Troubleshooting Guide LB115 Series Lavit Dispenser FOR TECHNICAL ASSISTANCE PLEASE CALL 1.855.750.5377 18-11-26-REV-A...

  • Page 2: Table Of Contents

    Page 31 Water Chilling Screen Page 32 Unit not Cooling or Chilling Page 33-35 Basic Troubleshooting Page 36 Large Amount of water left in Capsule Page 37-38 Lavit Quick installation guide Page 39 Lavit User Guide Page 40 Draining & Decommission 18-11-26-REV-A...

  • Page 3: Introduction

    Introduction The purpose of this manual in conjunction with the LB115 Series service manual is to ensure that technicians are provided with the necessary information and instruction needed to address any concern or issues that may come up during the life of the Lavit Beverage Dispenser.

  • Page 4: Water Flow Diagram

    Water Flow Diagram COLD TANK DRIAN 18-11-26-REV-A...
  • Page 5 PCB Electrical Diagram 18-11-26-REV-A...
  • Page 6 Cooler Electrical Diagram 18-11-26-REV-A...

  • Page 7: Beverage Dispense Splatters/Multiple

    Beverage Dispense Splatters/Multiple Streams Issue: When crafting a Lavit beverage the dispense stream is broken up and several streams may be present and the cup may overflow. Solution: This situation is usually the result of one of the conditions below.
  • Page 8 “Clean Brewer” Screen Appears Issue: When using the unit, the Clean Brewer screen appears. Solution: There are two reasons why the "Clean Brewer Screen” appears. 1. The brewer is designed so that after a beverage is brewed the capsule lifting mechanism returns fully to the “Home”...
  • Page 9 Reference pictures for changing the Brew Chamber Hall/Home sensor Check Hall Sensor Connection Remove 5-#1 Philips screws Remove Gear Cover Mark Gears to ensure proper placement when re-installing. Remove Gear to gain access to Hall Sensor. Remove 1-#1 Philips screw to change sensor. Re-install all components in reverse order and test all functions 18-11-26-REV-A...
  • Page 10 “Close Brewer Lid” Error when Brewer Closed Issue: The touchscreen displays a "Close Brewer" message but the brewer lid is in the closed position. Solution: The close brewer message will be displayed when the brewer lid is closed under three circumstances: 1.
  • Page 11 Restart and clear error. Dispense water to o p e n solenoids. A bottled water unit with a Flo-Jet or Lavit pump will show this error if the bottle is empty or the pump is not on. Check to make sure your water bottle has adequate water remaining in it and that the pump is powered on.

  • Page 12: No Soda Water - Gas Only

    No Soda Water – Gas Only Issue: When the user selects soda water or a soda beverage no soda water is dispensed just CO2 gas. This mayhappen all the time or on occasion. Solution: The soda tank is not refilling properly. There may be an air lock in the inlet water line to the soda tank which the soda pump cannot overcome.

  • Page 13: Troubleshooting The Soda Water Circuit

    Troubleshooting Procedure: Remove the top cover panel but keep the touchscreen and Lavit button connectors attached. On the main PCB located on the front right of the unit under the plastic shield, locate the soda probe lead connector. The connector will be the yellow connector found on the front right-hand side of the unit closest to you.
  • Page 14 Turn the unit off. Power the unit on. Dispense a half of cup of still water by pressing the Lavit Button. Verify that the soda pump comes on (RED LED illuminates). Verify that they water is flowing to the soda tank (Inlet and Cold Tank Solenoid RED LEDs cycle on and off.
  • Page 15 Install the replacement probe. Replace the foam insulation. Reconnect the spade connector. Reinstall the ozonator. Power on the unit. Dispense a half cup of still water. Verify that the soda pump comes on and that the soda pump is pumping water. Reinstall the top cover panel.

  • Page 16: Replacing The Soda Probe

    Replacing the Soda Probe Step -1 Open the beverage lid remove the 4- screws shown below. Then lifting upwards in the center rear section of the top cover, unsnap and remove top cover Step -2 Remove all Screws shown in diagram below. Then Look Over top edge of panel to locate the internal side panels crew Using Long #...
  • Page 17 Step – 3 tilt the 03 Generator/ Step 2 -Remove the four screws, one Ozonator assembly to the one side on each corner holding 03 Generator/ Ozonator in place. The 03 Generator/ Ozonator assembly is located at rear of cooling tank Step –...
  • Page 18 Step -7 Gently unscrew soda probe and replace. Soda Step -6 After removing polystyrene probeheadisanM17. Remove black probe cover and set aside and clear any Polystyrene debris. NOTE: Be careful not to lose black O-ring seal, it may remain in the tank opening, if so remove and place it back on the probe FINAL STEP -Replace probe, replace polystyrene and secure it with a non-conductive tape, white duct tape is preferred, then reassemble in reverse order.

  • Page 19: Soda Solenoid Valve Replacement

    Soda Solenoid Replacement If the soda valve is continually dripping it may be due to a piece of sediment trapped on the plunger seal of the valve and stopping it from sealing shut. To confirm the soda valve is dripping, first vend a still water, then turn off the water supply to the machine, then power down the machine, and make sure the C02 regulator is turned on.
  • Page 20 Remove these two screws and the bonnet will now come off of the valve’s plastic body. Take care the plunger and spring do not fallout. Look in the valve body outlet orifice and the valve plunger seal for a small piece of sediment that would have stopped the plunger seal mating correctly with the valve body.

  • Page 21: No Still Water Dispense

    (a red connector with dual leads - two white and a red and black). Press and hold the Lavit button. A red light should illuminate on the main PCB next to the connector indicating power to the dispense pump.

  • Page 22: Water Stream Calibration

    Too much water will deliver weak and watery beverages. It is critical that 12-ounce beverages be served each time. To properly calibrate the Lavit Dispenser, three water streams must be calibrated: mix, still, and sparkling. During the calibration process 12 ounces of water should be drawn from the dispenser for each calibration.
  • Page 23 Place your measuring beaker under the water dispense. Press the Water CAL ON icon. Let the still water run for about five seconds to remove all air in the still water lines. Press the CAL OFF icon. Dispose the water. Place your measuring beaker in the dispense area and press the Water CAL ON icon.
  • Page 24 17. Dispense a Lavit Tea, a Lavit still water beverage, and a Lavit sparking water beverage. Use one capsule for all beverage measurements. If available use lemonade, lemon lime, or apple pear. 18. All selections should dispense 12-ounces or 355 grams plus/minus 10 grams of beverages.
  • Page 25 Water Stream Calibration Reference Pictures Measure Medium Water Select Medium water Target is between 7 to 7.5 ounces Measure Large Water Select Large water Target is 12 ounces Measure medium sparkling water, Select Medium sparkling water Target is between 7 to 7.5 ounces The example below is considered normal for all FLAVORED...

  • Page 26: Water Tanks Not Filling At Start Up

    Home Screen with two red icons on the bottom right of the touchscreen (low water and low CO2pressure) The Lavit Button should be flashing RED. Press the Lavit button firmly and the inlet and cold tank solenoids will open and the tanks will fill. You should hear the solenoids engage and the water running.
  • Page 27 leads. These will be the third and fourth connectors from the top on the right side. Jump the two blue prongs in the blue connector slot on the PCB. If the solenoid lights come on and water starts filling the tanks then the float mechanism is faulty.

  • Page 28: Water Run On

    While holding the top in one hand disconnect the ribbon connectors from the Lavit button assembly and display board. Remove the left side panel (6 screws – 2 on the rear, 3 under, 1 on the inside wall towards the front which requires along Phillip screwdriver to reach).
  • Page 29 Tilt the brewer assembly on its side to gain access to the 2-soda solenoid mounting screws. Remove the screws and the soda solenoid. Turn the soda solenoid upside down and remove the 2 small screws that hold the white plastic base to the magnetic drive. Note the orientation of the red and blue water ports to the magnetic drive.

  • Page 30: Blank Or Black Touchscreen

    Blank or Black Touchscreen Issue: When the power to the unit is on the touchscreen is blank or black. Solution: This can be caused by a faulty connection to the touchscreen PCB or a faulty touchscreen assembly. Remove the top cover of the unit. Unplug and reinstall the touchscreen ribbon connector to the main PCB and then to the touch screen.

  • Page 31: All White Touch Screen

    All White Touchscreen or Flickering/Diminished Colors Issue: The touch screen is white or the touch screen colors are diminished and flickering lines appear. Solution: If the touchscreen is all white and you are unable to recalibrate then the touchscreen assembly should be replaced. Diminished colors or a flickering touchscreen will result when the ribbon connection from the touchscreen to the touchscreen PCB is loose.

  • Page 32: Touch Screen Calibration

    Touchscreen Recalibration Condition: During normal operation of the Lavit Dispenser the touchscreen may become unresponsive or the pushing of icons may result in an incorrect entry or no response. Corrective Action: To reset and to recalibrate the touchscreen perform the following actions: Turn the power OFF.

  • Page 33: Water Chilling Screen

    Water Chilling Screen Issue: When water is dispensed or a beverage is created a new dispense cycle cannot be performed because the Water Chilling Screen is on. Solution: The MAX TEMP function in the service menu has been enabled. Enter the service menu and select MAX TEMP.
  • Page 34 Remove and reinstall the relay connectors (2). Verify that the compressors running. Allow 20 minute to determine if the compressor becomes warm to the touch and the condenser is warm. If the compressor is running and not chilling issue continues, Contact Lavit Tech-line .855.750.5377. 18-11-26-REV-A...

  • Page 35: Troubleshooting

    Troubleshooting Potential problems and solutions. Condition Possible Solution Water dripping After the dispensing of a sparkling beverage or sparkling continuously water several drops may occur as the sparkling water in the from the water line heats up and expands. This is normal. dispense area.
  • Page 36 No Sparkling If the soda pump is not filling the soda tank properly then Water Dispense, CO2 gas will be released at the dispense nozzle when you CO2 gas only. select a sparkling beverage or sparkling water. The following four conditions may exist: 1.
  • Page 37 This condition will only be present if the mix stream Dry powder dispenses or a dispense volume is too low. A low mix stream volume can large amount occur under the following circumstances: of undissolved powder. 1. For a POU installation the inlet water stream pressure has been reduced.
  • Page 38 Large Amount of Water Remains in Capsule After Dispense Issue: After dispensing a beverage, a large amount of water remains in the capsule. Solution: Two possible conditions will create this situation: 1. The mix stream is improperly calibrated. The mix stream will run beyond the proper time and continue to fill the capsule.

  • Page 39: Draining & Decommission

    Draining & Decommissioning The Lavit Cooler 1. Turn off the water supply to the m a c h i n e. 2. Using a suitably sized bucket drain the main water tank 1 . (1.5 gallon) 3. Remove the rear bung and drain water to the bucket until the flow stops, tip cooler Back to ensure all water is drained.
  • Page 40 System will self-check with software version NoCO2DetectedScreen willappear thenHOMEScreen will display.DO NOT INSTALL CO2 AT THIS POINT Press RED flashing Lavit button to fill water tanks As the still water tank fills, the WATERFILLING screen will be displayed. ALL SIDES...
  • Page 41 BLEED AIR FROM LINES 3. After calibration, verify 12oz volume by creating a new Still and Carbonated Beverage 1. Press the Lavit button to clear the still water line 2. Select Water Only – Medium Soda Water to clear the soda water line...
  • Page 42 Draining & Decommissioning The Lavit Cooler 1. Turn off the water supply to the m a c h i n e . 2. Using a suitably sized bucket drain the main water tank 1 . (1.5 gallon) 3. Remove the rear bung and drain water to the bucket until the flow stops, tip cooler Back to ensure all water is drained.
  • Page 43 Press the Lavit button again If chose SPARKLING, choose Press the Lavit button. Press if you wish to stop between MORE or LESS for the Lavit button again if you the dispense. your carbonation level. wish to stop the dispense.

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