| Trouble | Possible Cause | Procedure | Remedy |
|---|---|---|---|
| No Coin Acceptance | No power to controller (display is dead). | Check power connection at controller (24VA). | If no power check/replace transformer. |
Short in changer circuit:
|
If version 1 Check control board changer protection fuse with meter ... Replace if bad. Visually check changer and changer harness for shorts. |
Unplug changer harness from board and power up, if LED relights, board is bad. Power down, plug harness on, power up and vend ... If LED lights again, coin mech is bad. | |
| If version 2 and 5: Controller overload light on. Visually check changer and changer harness for shorts. Unplug vendor for 5-10 min to reset overload. |
Unplug changer harness from board and power up, If fuse blows, board is bad. Power down, plug harness on, power up and vend. If fuse blows again coin mech is bad. | ||
| Coin mechanism harness to board is cut or disconnected. | Check each harness wire to make sure it is not cut/disconnected. Wire numbers should match numbers molded on receptacle. | Repair or replace changer harness. | |
| If still no coin acceptance. | Replace coin mech. | ||
| If still no coin acceptance. | Replace vendor control board. | ||
| No acceptance or rejects a percentage of good coins. | Coin return lever. | Make sure changer is mounted correctly and coin return lever is in proper position. | Reposition changer and or vendor coin return lever. |
| Acceptor is dirty or foreign matter in path. | Check acceptor path to be clean. | Clean acceptor. | |
| Coin changer improperly tuned (if tunable). | Consult coin changer manual/representative or replace changer. | Consult coin changer manual/representative or replace changer. | |
| Defective controller (no acceptance only). | Replace control board and test. | Replace faluty control board. | |
| Accepts coins but gives erratic/no credit. | If erratic or no credit: acceptor (coin mech) |
Replace coin mech. (acceptor) and test. If O.K. | Replace acceptor or coin mech. |
| If no credit: Defective harness between coin mech and control board. |
Check harness for cut wires or wrong connections. | Repair or replace harness. | |
| If no credit: Defective controller. |
Replace control board and test. | Replace faulty control board. | |
| Changer will not payout coins. | Defective harness between coin mech and control board. Pins 3, 4, and 5 cut or not connected. | Check harness for cuts or wrong connections. | Repair or replace harness. |
| Defective coin mech. | Replace coin mech and test. | Replace faulty coin mech. | |
| Defective controller. | Test vendors manual coin payout. If vendor pays out manually but not during sales. | Replace Defective Control Board. | |
| Validator will not pulll in a bill. | No power to validator (validator status light is off) | Make sure taht the validator harnessing is correct for your style of validator. | Correct faulty harnessing. Power vendor down/up and listen for validator cycle. If validator cycles power is present. |
| Acceptance disabled by coin mech or bad harnessing (validator status light is on). | Make sure that the coin mech is plugged in (accepts coins) and that the tubes are full of coins. | If not, fill coin tubes. | |
| Make sure that the changer harnessing is correctly connected and not cut or pinched. | Repair or replace faulty harnessing. | ||
| Replace coin mech and test. If validator accepts ... | Replace defective coin mech. | ||
| Defective validator. | Replace validator and test. | Replace defective validator. | |
| Defective controller. | Replace controller and test. | Replace defective controller. | |
| Validator takes a bill and establishing a credit. | Defective (wrong, cut, or miswired) validator harnessing.(Credit not getting from validator to control board via the credit wire) | Make sure that the validator harnessing is correct for you style of validator and it is plugged in / wired correctly. | Correct faulty harnessing. |
| Defective validator. | Replace validator and test. | Replace defective validator. | |
| Defective controller. | Replace controller and test. | Replace defective controller. | |
| Validator takes a bill and erasing credit. | Validator switch settings (if any). | Refer to validator service manual or validator representative. | ----------- |
| Wrong validator interface harness to vendors controller. | Refer to validiator service manual or validator representative. | ----------- | |
| Defective validator | Replace validator and test | Replace defective validator | |
| Defective controller. | Repalce controller and test. | Replace defective controller. | |
| Validator takes a bill and allows payback of coins without a selection. | Controller options settings not correct. | Access the vendor options mode and check the option settings. | Change options if incorrectly set, then test. |
| Vendor sets up credit with bill and erases credit upon selection. | Controllers options not set correctly. | Access the vendors options mode and check the option setting for dollar escrow. | Change options if incorrectly set then test. |
| Multiple vending | Version 2 and 5 only Controllers column depth setting per column is wrong. |
Access the vendors set depth mode and check the current depth setting. | Correct Setting. |
| Controllers options setting is wrong. | Access the vendors options mode and check the current option 1 select button setting. | Correct Setting. | |
| Delivery sensor. | Check to see if the delivery sensor is plugged onto the controller. | Plug sensor harness onto proper connection at the controller and properly grounded. | |
| Check to ensure that the sensor is adjusted properly.Test by hitting delivery chute to watch the sensor adjustment blink on then off. | Adjust sensor properly if necessary. | ||
| Replace delivery sensor and test. | Replace defective sensor. | ||
| Vend motor | Check to see if the vend motors brake is not bent and that it is releasing after a vend cycle. |
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| Vend mechanism(Oscillator and Rotor) | Make sure that the oscillator (wide column) and rotor (narr column) are properly in place and that they are not bent in the slightest. | Replace defective parts. | |
| Shimming if necessary (or required in tripled deep cabinets). | Make sure that the proper shimming is installed for your type of vendor according to the product that your are vending. | Install proper shimming if necessary. | |
| Multi-vend or double vend every other attempt | Vendor selection depth set incorrectly (set for less than actual depth). | Access controllers set depth mode and check all selections. | Correct depth setting. |
| Vendor options set incorrectly (number of wide columns). | Access controllers options mode and check the options (epecially option For selection 1). | Correct depth setting. | |
| Delivery sensor | Check to see if the sensor adjustment LED blinks upon product impacting chute. | Turn sensor adjustment screw 1/4 turn clockwise and test vend. | |
| Wrong product vending from selection #1 every second vend. | Vendor options set incorrectly (sequencing). | Access controllers options mode and check the sequencing option. | Correct options settings. |
| Multiple vends without a selection. | Reversed polarity with a wire shorted to ground between and control board and the vend motor. | During standby. If 110 volts is read on the neutral side of the vend motors (jumper or sold out switches side). | Check the voltage from the wall outlet if it is reversed, try to find the shorted wire from the select switch to the vend motor. |
| Defective control board. | During standby. If 110 volts is read at any motor from the board. (Check every vend motor) | Replace controller and any shorted vend motors. If a shorted motor is missed there will be a change of a reoccurance. | |
| First vend after reload is slower than 3 seconds. | Vendor selection. Depth set incorrectly. (set for greater than actual depth) | Access controller set depth mode and check all selections. | Correct Depth settings. |
| No vend upon selection - Dry Vend (no refund) | Delivery Sensor | Check to see if the delivery sensor adjustment LED is constantly on. | Turn the adjustment screw counter clockwise until adjustment LED goes out. |
| Check to see if the delivery sensor harness is cut or pinched. (The sensor adjustment LED will constantly be on.) | Replace defective sensor. | ||
| Unplug the sensors connection from the control board. If the adjustment LED stays on | Replace defective controller. | ||
| No vend from some but not all columns (allows refund or 2nd choice). | Selection switch. | Make sure that the LED display acknowledges the selection switch pressed by displaying "hold" or by showing "sold out". | Check the select switch. Trace the selections harness back to the control board. Replace if necessary. |
| Individual wire that runs from the motor connection of the control board to the vend motor of the defective column. | Check individual wire running from motor connection at board to defective column. | Repair or reposition the wire if necessary. | |
| Neutral wire jumpering from left to right (inside cabinet) to each vend motor is cut or pinched. | If the wire is cut or pinched all vend motors to the right of the problem will not run. | Fin and repair the cut/pinched wire. | |
| Control Board | Measure voltage at motors connect on the individual wire per attempted motor. A selection must be made and "hold" must be displayed on the LED. You should register 110VAC. | If no or insufficent voltage is registered change defective control board. | |
| No vend from any selection(allow 2nd choice or refund) | Vend motors fuse blown by shorted control board. | Unplug vend motors connect from control board. Replace fuse and power up, check fuse. | If blown, replace control board. |
| Vend motors fuse blown by shorted harnessing ... (after performing the above test). | With motors conn. plugged onto controller unplug leads from each motor. Replace fuse, vend from each column then check fuse. | Repair or replace shorted harnessing between control board and motors. | |
| Vend motors fuse blown by shorted vend motor(s)...(after performing the above test) | With motors conn. plugged onto controller and leads plugged onto each motor. Replace fuse and vend from each column. If fuse blows | Repair or replace shorted harnessing between control board and motors. | |
| Wire 36 to vend motors connection does not have at least 110 volts AC constantly. | Check all wires connected to wire 36 from the control board for cuts. | If so, repair or replace shorted harnessing carrying 110 VAC to control board. | |
| Neutral wire jumpering from left to right (inside cabinet) to each vend motor is cut or pinched. | If this wire is cut or pinched all vend motors to the right of the problem will not run. | Find and repair the cut/pinched wire. | |
| No vend from any selection (allows refund or 2nd selection) | Vend motors fuse blown by shorted control board. | Unplug vend motors connect from control board. Replace fuse and power up. | If fuse blows, replace control board. |
| LED no lit | No power to control board. | check for 24 volts AC at the control boards power connection. | If no power, check the transformer and power to transformer. |
| Press controllers mode button. Does LED light? Power the vendor down and up. Does LED light? | If not check LED lead. | ||
| LED lead | Check the lead for any sign of being pinched or cut. | If pinched/cut replace LED lead. | |
| LED | Change the LED. Remove all harnessing but LED lead and power leaf from transformer to board. Check the new LED before mounting. | If still bad, replace the control board and test. | |
| Vendor set at a single price and display shows | Vendor options set incorrectly (number of total columns). | Access controllers options mode and check the options (especially for total number of columns) | Correct options setting |
| Display shows sold out immediately upon pressing select button with column full of product (sold-out not clearing) | Door switch wiring incorrectly connected or cut/pinched. | Check for cuts on the (2) door switch wires going from the switch to the control board, also check for bad connections:
|
If none are found check the door switch. |
| Door Switch | Check the door switch to see if it's defective. | If so, replace door switch and test. | |
| Control Board | Check control board by shorting across the two pins for the door switch wiring (control boards option connection) Does this clear the sold out condition? | If so, replace control board. |