This part detects if water is moving through the Chaffoteaux boiler. If these switches are detecting water flow they can either be a pump proving flow switches or a domestic hot water flow switch which detects if a hot tap has been opened. All these Chaffoteaux flow switches send signals to the printed circuit board within the boiler ensuring they are being monitored all of the time.
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Chaffoteaux 61000658 Celtic Sterling Flow Switch

Part: 61000658

Price: £119.00
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Chaffoteaux 999075 DHW Flow Switch

Part: 999075

Price: £29.76
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Chaffoteaux 65100519 Flow Switch

Part: 65100519

Price: £40.61
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Chaffoteaux 60081471 Britony Flow Switch

Part: 60081471

Price: £31.23