Duratech DURAPRO Flow Switch – R32

This genuine Duratech flow switch is designed for DURAPRO heat pump units running R32 refrigerant. The flow switch is a vital safety and operational component that ensures water is circulating properly before the heat pump activates.

What Does a Flow Switch Do?

The flow switch monitors water flow through the heat pump system. It detects whether sufficient water is passing through the unit and sends a signal to the control board to confirm safe operating conditions. If water flow drops below the required level or stops entirely, the flow switch triggers the heat pump to shut down, protecting the system from damage caused by overheating or running dry.

Why R32 Matters

R32 is a more environmentally friendly refrigerant with a lower global warming potential than older alternatives. DURAPRO units using R32 may have specific component requirements, so it’s important to match parts correctly. This flow switch is specifically designed for R32 models, ensuring proper compatibility and function.

Symptoms of a Faulty Flow Switch

If your heat pump displays flow-related error codes, fails to start despite adequate water circulation, or shuts down unexpectedly during operation, the flow switch may be at fault. These switches can fail over time due to debris buildup, wear, or electrical issues. Replacing a faulty flow switch often resolves intermittent operation problems.

Specifications