

Part number 0532216A is a pressure switch. This component monitors and controls the hydraulic system pressure in compatible airless sprayers. It is compatible with Impact 340 and Impact 400 Airless Sprayer models. By opening and closing an electrical circuit, it regulates the pump motor to maintain the desired pressure setpoint.
| Part Number | 0532216A |
|---|---|
| Part Description | Pressure Switch |
| Compatible With | Impact 340; Impact 400 Airless Sprayer |
| Condition | New |
Part number 0532216A is a pressure switch. It is a critical control component that senses hydraulic pressure in the sprayer's pump manifold and sends a signal to start or stop the motor, thereby maintaining system pressure within the desired operating range.
This switch is compatible with Impact 340 and Impact 400 Airless Sprayer models. A failed pressure switch can cause the pump to run continuously (causing over-pressure), not start at all, or cycle erratically. Replacing a faulty switch restores proper automatic pressure control.
| Pressure Sensing | Monitors hydraulic pressure via a diaphragm or piston. |
|---|---|
| Circuit Control | Opens or closes an electrical circuit to control the motor contactor. |
| Pressure Regulation | Maintains pressure by cycling the pump on and off as needed. |
| Motor Won't Start | Switch fails to close the circuit, preventing motor operation. |
|---|---|
| Motor Won't Stop | Switch fails to open, causing continuous running and over-pressure. |
| Erratic Cycling | Motor turns on and off rapidly or at incorrect pressures. |
| Pressure Fluctuation | Inability to maintain a stable set pressure during spraying. |
Pressure switch 0532216A is designed for the following Impact series sprayer models. Confirm your model number before installation.
| Compatible Sprayer Models | Component |
|---|---|
| Impact 340 | Pressure Switch |
| Impact 400 Airless Sprayer | Pressure Switch |
When diagnosing pressure control issues, these components on the hydraulic and electrical circuit are often checked.
Mechanical safety valve that protects the system if the switch fails to stop the pump.
The relay controlled by the switch that carries the high current to the motor.
Seals the switch port on the pump manifold to prevent hydraulic fluid leaks.