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Main Boiler Automatic Air Vent (248043)
Maintain your boiler’s peak performance and protect your heating system with this premium Main Auto Air Vent. This essential component is designed to automatically release trapped air from the sealed circuit, preventing internal corrosion, reducing operational noise, and ensuring consistent heat distribution throughout your home.
Direct Replacement: Specifically engineered as a high-quality replacement for Main part number 248043.
System Longevity: By removing air pockets, it prevents "air locking" and protects the internal pump and heat exchanger from unnecessary wear and cavitation.
Maintenance-Free Operation: Features a reliable float mechanism that works continuously to keep your system air-free without manual intervention.
Quiet Efficiency: Effectively resolves common "gurgling" or "banging" noises caused by trapped air in the boiler circuit.
Compatible Models:
Main Combi 24 — GC No. 47-474-01
Main Combi 24 HE — GC No. 47-474-02
Main Combi 30HE — GC No. 47-474-03
Main 24 System Eco Elite — GC No. 41-467-21
Main 25 Eco Elite (Post Serial Number MMH 1512) — GC No. 47-467-08
Main 25 Eco Elite (Pre Serial Number MMH 1512) — GC No. 47-467-08-
Main 28 System Eco Elite — GC No. 41-467-22
Main 30 Eco Elite (Post Serial Number MMH 1512) — GC No. 47-467-09
Main 30 Eco Elite (Pre Serial Number MMH 1512) — GC No. 47-467-09-
Main 18 HE System — GC No. 41-467-01
Main 24 HE System — GC No. 41-467-02
Main 28 HE System — GC No. 41-467-03
Main 24 System Eco — GC No. 41-467-11
Main 28 System Eco — GC No. 41-467-12
Main Combi 25 Eco — GC No. 47-467-01
Main Combi 30 Eco — GC No. 47-467-03
Main
D02368BX-02
