9189PH3HWPPT4

What should the repair of system components be undertaken using according to the Level 3 Diploma in Plumbing and Domestic Heating?

• The latest technology in plumbing

• Manufacturer's servicing and maintenance instructions

• General plumbing guidelines

• Personal experience and judgment

What will the manufacturer's instructions contain for the repair of components or appliances?

• The price of the components

• The warranty information

• The order in which the components or appliances should be dismantled and re-assembled

• The history of the company

Which of the following will the manufacturer's instructions outline?

• Installation procedures for new technology

• Fault diagnosis procedures

• Customer reviews

• Energy-saving tips

What is included in the manufacturer's instructions besides fault diagnosis procedures?

• Instructions for creating a budget

• Spare parts list

• Marketing strategies

• Legal disclaimers

What is the recommended repair for a pump with a burnt out motor?

• Recharge vessel

• Replace pump

• Replace capacitor, as per MIs

• Check Schrader valve with leak detector

Which component is likely at fault if there is no pressure in the vessel, with water discharging from the relief valve?

• Pump

• Expansion vessel

• Schrader valve

• Capacitor

If water is coming from the Schrader valve and from the relief valve, what is the likely known fault?

• Pressure loss

• Ruptured bladder or diaphragm

• Impeller broken or worn

• Cracked casing

What is a symptom of a cracked casing in a pump?

• Motor running, little or no water at outlet

• Pump not working, smell of burning

• Water leak

• Slow starting

What is the known fault for a pressure relief valve according to the document?

• Valve not seated correctly

• Water dripping when the system is hot

• Cold water running constantly

• Incorrect pressure in the system

What repair should be done if the pressure relief valve shows water running constantly?

• Recharge vessel or replace

• Clean seating/replace

• Check/replace the pressure reducing valve

• Isolate system; check/repair thermostat