Heat pump water heating – power bill higher than expected

Causes

Electricity tariff has changed

Increased hot water use

Cold water relief valve is discharging continuously 

Malfunction of temperature sensor

Temperature is set too high

Listed under: electrical, water heating, heating, heat pumps, Services

Cause

Electricity tariff has changed

Repair

  • check electricity tariff

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Cause

Increased hot water use

Repair

  • monitor hot water use

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Cause

Cold water relief valve is discharging continuously 

Repair

  • contact installer – the cold water relief valve should discharge small quantities of water while the heat pump is operating – if dripping continuously, replace it

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Cause

Malfunction of temperature sensor

Repair

  • contact installer

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Cause

Temperature is set too high

Repair

  • check and reduce thermostat setting

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