Ariston Appliance Repair in St Thomas

What does error code 802 mean on an Ariston boiler?

Error code 802 on an Ariston boiler indicates the automatic combustion calibration has failed. This is a combustion-related fault. Do not use the boiler. If you smell gas or fumes, do not operate any switches, ventilate the area if safe to do so, leave the property and call the Gas Emergency line from outside. Contact a Gas Safe registered engineer to check the combustion settings and gas valve.

What does error code 201 mean on an Ariston boiler?

Error code 201 on an Ariston boiler indicates the domestic hot water temperature sensor has no contact or an open circuit. Switch off the boiler for 30 seconds and switch it back on. If the error persists, contact a Gas Safe registered engineer to check the sensor.

What does error code 705 mean on an Ariston boiler?

Error code 705 on an Ariston boiler (Evo models with multi-zone heating) indicates the hydraulic separation sensor is defective. Switch off the boiler and contact a Gas Safe registered engineer to check and replace the hydraulic separator sensor.

What does error code 947 mean on an Ariston heat pump?

Error code 947 on an Ariston heat pump (Nimbus series) indicates a 4-way reversing valve error. The valve controls the switch between heating and cooling modes. Switch off the heat pump and contact a qualified heat pump installer to check and repair the reversing valve.

What does error code 940 mean on an Ariston heat pump?

Error code 940 on an Ariston heat pump (Nimbus series) indicates the hydraulic scheme is not defined. The system configuration needs to be set during commissioning. Contact a qualified heat pump installer to configure the correct hydraulic scheme in the system settings.

What maintenance tasks are included in an Ariston boiler service?

A professional service includes inspection of all boiler components (combustion chamber, burner, safety systems, hydraulic circuits), cleaning and adjustment to optimise combustion efficiency, and flue gas analysis to verify carbon monoxide levels comply with legal requirements.

Can I remove the temperature and pressure relief valve from my Ariston unvented cylinder?

No, the temperature and pressure relief valve must never be removed under any circumstances. This is a critical safety device that prevents dangerous pressure buildup. No other valve should be fitted between the cold water combination valve and the cylinder. Tampering with safety devices is illegal and extremely dangerous.

What is the Shower Ready function on my Ariston Velis Evo?

The Shower Ready function is an intelligent feature that minimises water heating time. Regardless of your temperature setting, the shower ready symbol illuminates when there is enough hot water for at least one shower (40 litres of mixed water at 40°C). This helps you know when hot water is available without waiting for the full tank to heat.

How do I set up the Ariston NET app to control my boiler?

Download the Ariston NET app and create an account. On your boiler, access the User Menu and navigate to Connectivity Settings to enable Wi-Fi. Press the Wi-Fi button on the boiler to start the connection procedure. In the app, select your Wi-Fi network and enter your password. The app will guide you through naming your product and completing setup. Your network must use 2.4 GHz frequency.

What do error codes SP1 or SP2 mean on my Ariston boiler?

Error codes SP1 or SP2 indicate ignition failure where the burner will not light, resulting in no hot water or central heating. This typically arises from debris clogging the burner or pilot jet, damaged ignition electrodes, or inconsistent gas supply. This is a gas-related fault. Do not attempt to fix this yourself. If you smell gas, do not operate any switches, ventilate the area if safe to do so, leave the property and call the Gas Emergency line (0800 111 999) from outside. Contact a Gas Safe registered engineer for repairs.