MotorVac CarbonClean Dual System MCS 352 - Manual (Page 42)

Troubleshooting and Additional Help
Refer to the list below in the unlikely event that you have problems with your MCS 352.
Problem: Solution:
1. The MCS 352 is not operational or
trips breaker immediately.
Polarity is reversed on vehicle battery connection.
Check connections for correct polarity. Check
circuit breaker on the side of the cabinet.
2. Pressure Gauge on the MCS 352
displays maximum pressure upon
start up.
Output and Return hoses may be reversed. Turn
Timer to zero and check hoses for correct
connection.
3. Rapid loss of fuel from the MCS
352 reservoir.
Return hose connection may be incorrect, allowing
fuel/detergent to return to the vehicle's fuel tank.
4. Start/Run switch is on but
operation does not commence.
Check Timer . If no time is set, then turn the
Time knob to set the run time.
5. The MCS 352 performs poorly. Check all hoses and wires for cuts or frays.
Check cabinet for dents or impact markings.
Verify that the fuel filter has recently been
replaced. (Refer to the maintenance log in
Appendix A to view dates of services
performed.)