Ariston Air Pressure Switch 571652

This genuine Ariston Air Pressure Switch is a fundamental safety and operational component for compatible Ariston boilers. It’s the part that verifies correct fan operation before ignition, ensuring a safe and efficient combustion cycle every time. Fitting this manufacturer-approved spare guarantees reliability and restores the boiler's correct operating sequence.

The Boiler's Critical Go/No-Go Check

The ignition sequence is a precise, safety-critical process in modern fan-flued boilers. At the heart of this process is the Air Pressure Switch (APS). It’s a small but vital component that performs one of the most important checks: confirming the fan is running correctly and that the flue is clear before any gas is released. It acts as the boiler's go/no-go gauge. If it doesn't detect the correct pressure differential created by the fan, it stops the sequence in its tracks, preventing a dangerous buildup of flue gases or unburnt fuel. For a heating engineer, understanding the role of the APS is key to diagnosing a whole range of boiler lockout issues.

The APS is often a prime suspect when you're on a call-out and faced with a boiler that won't fire up.

It’s a frustrating scenario: the fan whirs into life, but the ignition sequence never completes, leaving you with a lockout code and a cold house. A faulty switch can mimic symptoms of a failed fan or a blocked flue, leading to wasted time and incorrect diagnoses. This is why replacing a suspect switch with a genuine Ariston spare is so important. The Ariston Air Pressure Switch 571652 is calibrated to the exact pressure (Pa) ratings required by the boiler's design. Using a generic or non-genuine part can lead to intermittent faults that are a nightmare to trace, or, even worse, it could allow the boiler to fire up with an inadequate flue draught, posing a significant safety risk. Here at Heating and Plumbing World, we know that having the right part for the job is crucial. Fitting this genuine spare ensures you get the first-time fix, maintain the boiler's safety approvals, and uphold your reputation as a thorough and reliable professional. It’s a core component in the wider heating system that demands precision. This functions as an air flow pressure switch.

Why a Genuine APS is Essential

• Ensures Safe Ignition: Guarantees the boiler will only attempt to fire when the flue path is clear, preventing hazardous situations.
• Accurate Diagnostics: Using a genuine, correctly calibrated part eliminates the guesswork, leading to faster and more accurate fault-finding.
• Perfect Boiler Compatibility: Designed to integrate seamlessly with the boiler's PCB and fan, restoring the intended operational performance.
• Maintains Manufacturer's Warranty: Fitting genuine Ariston spares is crucial for keeping the appliance's warranty intact.
• Builds Customer Confidence: Demonstrates a commitment to using the correct, high-quality components for every repair, enhancing trust.

Technical Specifications

• Brand: Ariston
• Part Number: 571652
• Product Type: Air Pressure Switch
• Compatibility: Designed for specific Ariston boiler models.

We stock a huge range of genuine boiler spares. If you need to confirm this part is correct for your specific boiler model, please have the make and model ready and get in touch with our expert team through our contact page.