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Deleted member 267285
Our company have on occasion struggled to obtain parts. Had a few issues with flow switches, S1/S2 sensors, pressure sensors and an ignition lead.I'm not quite so involved with plumbing these days, but not heard any problems. Never had any problems with their service department or getting parts.
Also - this applies to any boiler - if they’re installed on dirty systems, expect components to fail - had issues with expansion vessel communication pipes and blocked pressure sensors.