Review on π₯ Enhance Performance with Firestone 9039 Replacement Pressure Switch by Nick Beck
Do not run the pump through this switch
The previous owner decided to install a relay and start the pump with the switch. Electronics lesson: ELI the ICE man. Voltage leads to current and an inductive circuit. Each time you open the switch, the voltage rises to technically infinity. That is why the vacuum cleaner ignites a large spark when you pull the cord while working. High voltage will destroy the switch. Revan to the rescue!
- Firestone designs air springs and related products for commercial vehicles and trailers, automobiles, SUVs, pickup trucks, minivans, RVs, buses, farm machinery, railroad and industrial equipment.
- Negative impression
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