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Boiler Fault Finder


… This content is for Annual Subscription and Annual Subscription Special members only. Please login to view this content. (or Register here.)Thermostats was last modified: May 15th, 2014 by Boiler Fault Finder
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Thermostats – Over heat Cut Out

Over heat cut out thermostat (Set @ approx. 90 – 98 degrees C) Reasons to activate an over heat cut out thermostat Scale / magnetite deposits causing excessive heat build up Loss of system water Loss in manufacturers calibration Faulty pump or pump speed too low Too much air within&he
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Thermostats – Liquid Expansion

Thermostats – liquid expansion / Vapour Pressure Type Liquid expansion / vapour pressure Reasons to affect a liquid / vapour expansion type thermostat: Contact points worn out, burnt out or pitted Loss in manufacturers calibration Phial incorrectly located into pocket The unit c
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