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Upgrade nowComponent Fault-Finding: Pumps, Vessels & Thermostats
Read through the material below, then test your understanding.
Module Lessons
Hot Water Systems: Planning & Design
Fuels Used in Hot Water Systems
Open Vented Storage Systems
Unvented Storage Systems
Localised Water Heaters
Unvented System Pressures
Secondary Circulation Systems
Hot Water Safety Controls
Functional Controls: Strainers & PRVs
Expansion Devices & Check Valves
Pressure Relief, Tundish & Composite Valves
Discharge Pipework: Sizing & Termination
Design Information Sources
Sizing Cisterns & Storage Vessels
Hot Water Pipework Sizing
Sizing Circulation & Boosting Pumps
Sizing Expansion Vessels & Presenting Designs
Installing Unvented Hot Water Systems
Testing & Commissioning Hot Water Systems
Diagnosing Hot Water System Faults
Component Fault-Finding: Pumps, Vessels & Thermostats
Servicing & Maintaining Hot Water Systems
Lesson Overview
Learn how to systematically diagnose, test, and rectify mechanical and electrical faults on pumps, expansion vessels, and thermostats in domestic hot water and heating systems.
Learning Objectives
Diagnose hydraulic and electrical faults on circulating, shower, and booster pumps.
Identify expansion vessel failures using pressure tests and inspection methods.
Conduct electrical dead tests to verify thermostat and high-limit cut-out operation.
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