Water Heater Servicing Quiz

What is the purpose of the document produced under the guidance of the HWA?

• To provide a general overview of water heaters

• To specify best practices for hot water cylinder servicing

• To sell water heater products

• To offer discounts on water heater services

Why are manufacturers' instructions considered indispensable according to the document?

• They provide a warranty for the product

• They are a reference for unvented water heater servicing

• They offer discounts on services

• They include installation guides

How often should service checks be carried out for unvented direct and indirect products?

• Every 6 months

• Every 12 months

• Every 18 months

• Every 24 months

What should a service engineer have available when servicing a hot water cylinder?

• A list of previous repairs

• The manufacturer's instructions

• A pressure gauge

• A water quality test kit

What should be done if there are existing issues with the hot water system?

• Ignore them and continue servicing

• Discuss them with the service engineer

• Replace the entire system

• Increase the water temperature

How should a bubble top/air gap system be serviced?

• Fully drain and replace the cylinder

• Partially drain and refill according to instructions

• Increase the pressure in the expansion vessel

• Close the mains supply and open a hot tap

What is the purpose of running water through the T&PR and Expansion Valves for 30 seconds?

• To check for leaks

• To ensure no loose scale or debris is present

• To increase water pressure

• To test water temperature

What should a service engineer check while inspecting the safety valve operation?

• The thermostat settings

• The electrical housing condition

• The tundish drains and discharges for blockages

• The flexible hoses condition

What is the recommended storage temperature for hot water in most storage cylinders?

• 50°C

• 60°C

• 70°C

• 80°C

What should be done if the electrical housing is broken or cannot be securely closed?

• Ignore it

• Replace it

• Paint it

• Clean it