Stopping the NonStop Vac

Jordan Fletcher
Jordan Fletcher
• 1 min read

D&S Vacuum

A common problem that most car wash owners will eventually encounter is with vacuums that won’t shut off.

The nonstop vac problem will always be one of two possibilities:

1) The timer is bad or malfunctioning, or

2) The mercury contactor is bad

To discover which part is bad, test for voltage with a VOM on the coil of the mercury contactor. If there is no voltage across the coil, then the contactor is bad.

If the mercury contactor has voltage, then the timer is the culprit. You can then proceed with the repair.

Related Posts

Tech Tip Center

Inspecting Car Wash Presoak Chemistry

If your car wash presoak is not performing as expected, inspecting your car wash presoak chemistry for water softness, foot valve leakage, and alkalinity level. 1) Ensure the water softener is working properly. Check water hardness. Water softeners can be consuming salt without conditioning water adequately, so it’s important to test water quality. 2) Check the foot valve […]

Tech Tip Center

Caring for Stainless Steel Equipment

No one wants to clean their vehicle at a dirty-looking car wash. Customers return to locations with clean, nice-looking bays and equipment. Regularly cleaning your car wash’s stainless steel surfaces will improve their corrosion resistance and appearance. Thus, not only the longevity of your equipment increases, your revenue can increase too! Properties Stainless steel is […]

Investors

Wiring Basics

Car wash owner/operator duties often include that of a “service technician” as well. When tackling electrical issues, always remember these basic steps: Disconnect breaker before beginning any service. When unplugging a wire, cable, or connector, label it and the contact before it is disconnected so you know where to reconnect. Take a picture of the […]