X-Start Wash Communications

The kiosk fires the wash package once the wash equipment is available. The voltage is supplied by the wash equipment and can be 24 or 120 volts, AC or DC.

If the wash does not fire the more common cause is a bad wire, a bad relay, or a fault with the wash in use signal supplied by the wash equipment.

It is absolutely necessary that the wash in use signal is not turned on before the car has entered the bay. If the wash in use fires immediately after the wash is fired, put in a 10 second delay relay inline to the wash in use line.

If there is any voltage on the wash in use line when the bay is empty, put a 1000 Ohm 2 watt resistor inline on the wash in use signal.

Wash In Use Theory

For example, the following scenario is a normal transaction using the Wash in Use signal.

  1. The customer pulls up to the kiosk. The wash bay is empty and the Wash In Use Signal (supplied by the wash equipment) is at 0VAC/VDC.
  2. The customer enters payment for the wash. If the payment is declined, the customer will be prompted to choose another payment method and the wash will not fire.
  3. If the payment method is accepted, the kiosk determines if the wash is available based on the Wash In Use signal from the wash equipment. If the voltage is 0VDC/VAC, the kiosk tells the customer to enter the wash and fires the relay related to the wash package.
  4. At this stage, if there is any voltage on the Wash In Use Line, the screen will remain on the Wash Busy screen. This could be caused by as little as 2VDC/VAC in residual voltage and still keep the kiosk from firing the wash. In this case, put a 1000 Ohm 2 watt resistor inline on the Wash In Use signal (J18 pin 1 to pin 2 on the Wash I/O board).
  5. If there is no residual voltage, the customer may enter the bay and the wash starts. The wash equipment returns the Wash In Use signal at either 24VDC, 24VAC, or 120VAC. The Wash In Use signal must stay on constantly until the customer exits the wash.
  6. Display properly, the Wash In Use signal must not turn on until the car has entered the wash bay. If the Wash In Use signal is generated software or an inline programmable time delay relay on the Wash In Use signal (J18 pin 1 to pin 2 on the Wash I/O board).

Wash-In-Use Hardware Testing

  1. The Wash-In-Use signal is a crucial part of operations. To access the Wash In Use utilities from the maintenance screen; go to Test Hardware>Discreet I/O>Wash In Use.
  2. The Peripheral Status and Inputs are the most important testing tools on this page.
  3. Online indicates it sees voltage on the Wash I/O board across J18 pins 1 and 2.
  4. Wash In Use should only be high when there is a car in the wash bay, when using gates and the arm is down, or when using the cycle complete signal.
  5. Wash In Service refers to a signal from the car wash that changes state when the fault is present. The Wash In Use voltage provided varies by wash. It can be 24 VDC/AC or 120VAC.
  6. To access the Wash Relay test utilities from the maintenance screen, go to Test Hardware>Discreet I/O>Wash In Use>Wash Outputs.
  7. All relays should be low by default.
  8. Pressing Wash 1 or any other wash relay button turns on the relay. The relay should close and send the corresponding signal to the wash.
  9. Use this page to test the wash packages.

Wash Package Troubleshooting

WARNING: THIS SECTION OF TROUBLESHOOTING INCLUDES HANDLING 120VAC. USE CAUTION.

  1. Locate the Wash I/O board (circled).
  2. Check J18 (circled) across pins 1 (reference) and 2 (ground). While the bay is empty, there should be no voltage. If there is bleed over voltage, install a 15ooOhm 2 watt resistor inline to remove the voltage.
  3. On J17 (circled) jump any wire from pin 1 through pin 8 (reference) to pin 9 (common).
  4. If the wash does not fire, this is caused by a fault in the wiring or car wash equipment.
  5. From the test hardware screen, fire all relays that successfully fired a wash manually in the previous step. If the wash fires, the relay works as intended.
  6. If the relay fires successfully, the wash will start and the matching LED will light up on the Wash I/O board (circled).
  7. If the wash does not fire, the relay is faulty.
  8. Move the wire and programming to an available relay on the Wash I/O board.
  9. If the relay is not available or none of the relays work; replace the Wash I/O board.

Updated: 042726