| Error | Probable Cause | Corrective Action |
|---|---|---|
| Coin Acceptance/Payout (Record all errors fro reference if SandenVendo America, Inc. Technical Service is required) | ||
| Coin Mechanism will not accept coins. | No power to control board. | Check to make sure the red LED on the control board is flashing red. If flashing, check MDB harness connections. If connections are good, replace change. |
| Harness from coin mech to board is cut or disconnected. | Use a meter and check each wire for continuity and ground. | |
| Short in coin mechanism. | Replace coin changer/acceptor | |
| Acceptor is dirty or other problem may exist (not tuned) | Clean acceptor or contact your local coin mech dealer. | |
| Defective control board. | Replace control board. | |
| No acceptance or rejecta a percentage of good coins. | Coin return lever pressing down on acceptor's coin plunger. | Make sure changer is mounted correctly and the coin return lever is in the proper position. |
| Acceptor is dirty or foreign matter is in the path. | Clean acceptor or contact dealer. | |
| Coin changer is improperly tuned (if tunable). | Contact manufacturer for tuning. | |
| Defective control board. | Replace or test control board. | |
| Always accepts coins but gives erratic or no credit. | If NO CREDIT: Defective harness between coin mech and control board (will have "CC" error). | Check harness for cut wires or wrong/bad connections. Test each wire for continuity or test to ground. If found to be defective, replace. |
| If ERRATIC OR NO CREDIT: Acceptor or coin mech. | Replace coin mech and test. | |
| If NO CREDIT: Defective control board. | Replace/test control board. | |
| changer will not payout coins. | Defective harness between coin mech and control board. | Test vendor's manual coin payout. If vendor won't pay out using the COIN mode or during sales, check harness for cuts, bad continuity or wrong connections. If defective, replace and test. |
| Defective coin mech. | Replace coin mech and test. | |
| Defective controller board. | If coin mech won't payout coins manually in the COIN mode or during the Sales Mode and the above two procedures have failed, replace the control board and test payout both in the COIN mode and during a sale. | |
| Changer payout buttons are disabled while door is closed or while in Open-Door Sales Mode. | Enter the Service Mode or access the Coin Payout Mode ("COIN"). | |
| Bill Acceptance | ||
| Bill Validator will not pull bill in. | No power to validator. | Turn off power switch. Wait for 10 seconds. Turn off power switch and see if bill validator cycles. If not, check validator harnessing or replace the bill validator. |
| Acceptance disabled by coin mech (if present), or bad harnessing. | Make sure that the coin mech is plugged in (accepts coins) and that the coin tubes have enough coins to enable bill acceptance. | |
| Coin mech is not operative. | Make sure that the changer is harnessing is correctly connected and has continuity. Repair or replace if necessary. | |
| Replace validator and test. | If validator accepts, bill validator was defective. | |
| Bill validator takes a bill but does not establish credit. | Defective validator harness (credit not getting from validator to control board through the harness. | Make sure that the validator and harnessing is correct for your stlye of validator and it is plugged in and wired properly. |
| Defective validator. | Replace/test validator. | |
| Defective control board. | Replace/test control board. | |
| Bill validator takes a bill and credits but not erasing credit. | Defective bill validator. | Replace validator and test acceptance and erasure of credit. |
| Defective control board. | Replace/test control board for erasure of credit. | |
| Both vend sensors are defective. | Replace vend sensors. | |
| Validator takes a bill and allows payback of coins without a selection. | Configurations not set properly in control board. | Access vendor configuration mode and check the "Force Vending" setting. |
| vending Problems | ||
| Multiple vending (not cancelled credit). | If multiple vending is from all selecxtions, delivery sensor is cut, improperly grounded, or defective. | Replace sensors and test. |
| NOTE: If both sensors are not present or are defective, V21 will allow up to four products from each column to be vended before the column is determined to be sold out. | Replace sensors and test. | |
| Depth setting on partition not adjusted correctly. | Move can clip to proper position (refer to loading diagram on machine). | |
| Mechanical Error. | check for correct operation of the motor, gate link, bucket and gate. | |
| Wrong product vending upon selection. | Misload by vendor loader. | Ensure that all product within each column is the same. |
| Space-to sales not set properly. | Look for StS error. Check or reset space-to-sales. | |
| Miswired selection. | Check the wiring from the controller to the selection switches. Test selection switches. | |
| No vend upon selection. | Delivery sensor is malfunctioning or a column is jammed or sold out. | Check to see if the delivery chute sensor LED is constantly on. If so, replace vend sensor. |
| Defective controller board. | Unplug the sensors connection from the control board. Watch LED. If the sensor LED stays on, replace the defective control board. | |
| Dry Vend(No refund) | Premature vend detection. | Tap on chute and check for a green flashing light on the control board. If no light is flashing or light is constantly on, replace sensors. |
| Completely sold out. | Check to see if blocking is enabled. | Change time or turn off blocking. |
| Check if vend sensor is unplugged. | Plug back in. | |
| Space to sales has been cleared. | Reinitiate space to sales. | |
| Miscelaneous Problems | ||
| Displays shows sold out immediately upon pressing selection button of full column (sold out not clearing). | Door switch wired incorrectly or cut/pinched. | Manually press door switch. If lights and fan don't come on, check wiring or replace door switch. |
| Control board. | If door switch is replaced and still reading sold out, replace control board. | |
| Vendor appears dead; no digital display and no lights. | Defective main harness or or secondary power harness to the transformer. | Check transformer. |
| No digital display; vendor lights on. | Defective display or display harness. | Check display and display harness. Replace if necessary. |
| Check for a flashing red light on control board. | If no light, replace control board. | |
| vendor scrolls message on display but does not accept money. | Changer out of tune. | See "Tuning Changer". |
| Defective changer. | Replace changer. | |
| Defective control board. | Replace control board. | |
| vendor accepts money but does not credit. | Defective changer. | Replace changer. |
| Defective control board. | Replace control board. | |
| Vendor accepts and credits money but does not vend (does not indicate a sold out). | Defective selection switch. | Replace switch. |
| Defective selection switch harness. | Repair or replace harness. | |
| Defective control board. | Replace control board. | |
| Vendor delivers wrong product. | Vendor loaded wrong. | Correct loading. |
| Vendor space-to-sales set wrong. | See StS. | |
| Defective control board. | Replace control board. | |
| Flashing 8888's on the LED. | Chips on control board not seated properly. | Seat the chips down properly. |
| Bad LED connection. | Replace LED and/or harness. | |
| Defective control board. | Unplug everything from the board except the LED and power in. If the 8888's remain then replace the control board. | |
| Defective components. | If the 8888's have disappeared from the previous step, then begin plugging in harnesses one at a time. Replace whatever causes the 8888's reappear. Be sure to power down each time you plug in a harness. | |
| Solid 8888's on the LED. | Defective LED. | Replace LED and/or harness. |
| Defective control board. | Replace control board. | |
| Refrigeration | ||
| Refrigeration unit will not run even at the specific temperature. | No power or insufficient to refrigeration unit. | Check power supply and connection to see if each component gets teh specific voltage of power. Replace parts and line if necessary. |
| Defective temperature sensor. | Replace temperature sensor. | |
| Defective relay. | Replace the refrigeration relay. | |
| Defective control board. | Replace board. | |
| Unit will only run in the compressor test mode. (located under TEST) | Defective door switch. | Open and close the door to make sure lights and fan come on. If not, then check the door switch. |
| Defective temperature sensor. | Follow the same steps detailed above about the temperature sensor. | |
| Wait the 3 minute delay once the door is closed. | Wait to see if unit comes on. | |
| Defective control board. | If unit still does not come on, then replace the control board. | |
| Unit will not run even in the compressor test mode. **Note: Leave the compressor test mode on in order to check for voltage. | Defective door switch. | Upon opening the door, the light and condenser fan motors should shut off. If the don't replace the door switch. |
| Defective control board. | Replace the board. | |
| Refrigeration unit runs constantly. | Defective door switch. | Upon opening the door, the lights and compressor should shut off. If they don't replace the door switch. |
| Defective control board. | Replace the board. | |
| Defective relay. | Replace the refrigeration relay. | |
| Condenser fan motor doesn't run. | Defective condenser fan motor. | Replace the motor. |
| Bad connection. | check the connection and lines. | |
| Defective relay. | Replace the condenser motor relay. | |