Daikin Altherma Heat Pump Servicing

Alto Energy provides dedicated servicing for Daikin Altherma heat pumps, carrying out thorough checks to evaluate the condition and performance of your system. .

Regular servicing keeps your Altherma unit working as efficiently as it was designed to, reduces the likelihood of unexpected breakdowns and protects the lifespan of your investment.

Get in touch to book a service slot or speak to our team today to discuss what’s included.


Why Annual Heat Pump Servicing Matters

Heat pumps rarely fail suddenly. In most cases, performance gradually declines before a fault becomes obvious.

Regular servicing helps to:

Maintain system efficiency

A heat pump works hard year-round. Regular servicing ensures it continues to run at the efficiency it was designed for, keeping your running costs down and performance consistent.

Reduce unexpected faults

Catching small issues during a routine visit is far less disruptive than an emergency callout mid-winter. An annual service significantly reduces the likelihood of unexpected breakdowns.

Identify worn components early

Our engineers check all key components during every service visit. Worn parts identified early can often be replaced before they cause wider damage or system failure.

Extend the lifespan of your heat pump

A well-maintained heat pump will outlast a neglected one by years. Regular servicing protects the investment you've made in your heating system for the long term.

Verify controls and safety features

Every service includes electrical checks, alongside a full test of thermostat functions and control settings. We also verify the defrost cycle is operating correctly, which is critical to system protection during colder months.

Confidence your system is performing

After every visit you receive a full written service report. You'll know exactly what was checked, what was found, and that your system is running as it should.


What does a heat pump service involve?

Every system is different, but a typical heat pump service includes a thorough inspection of the heat pump and its operation. Our engineers carry out checks including:

  • Cleaning the outdoor coil and fan
  • Applying a corrosion inhibitor coating to the outdoor unit
  • Checking refrigerant pressures and circuit performance
  • A full visual inspection of the system
  • Electrical checks including voltages and current draw
  • Checking and monitoring flow rates, kWh usage and heat output (COP)
  • Ensuring the defrost cycle is operating correctly (in winter)
  • Checking expansion vessels and inhibitor/glycol levels
  • Testing thermostat functions and control settings
  • Backflushing the outdoor unit if needed
  • Bleeding radiators and checking for airlocks
  • Recording efficiency data and checking consumption levels

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Frequently Asked Questions