Ariston Appliance Repair in Quedgeley Fieldcourt

What does error code 955 mean on an Ariston heat pump?

Error code 955 on an Ariston heat pump (Nimbus series) indicates a water flow check error - insufficient water flow through the heat pump. Check that all valves are open, the circulation pump is working, and there are no blockages. Contact a qualified heat pump installer to check the flow rate.

What does error code 601 mean on an Ariston boiler?

Error code 601 on an Ariston boiler indicates the flue gas overheating sensor has been triggered. This is a combustion-related fault that may indicate dangerous fume buildup or a flue gas evacuation problem. 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 flue system and combustion.

What does error code 107 mean on an Ariston boiler?

Error code 107 on an Ariston boiler indicates the return pipe temperature exceeds the supply by 30 degrees. Switch off the boiler and contact a Gas Safe registered engineer immediately as this indicates a serious circulation or sensor problem.

What does error code 114 mean on an Ariston boiler?

Error code 114 on an Ariston boiler indicates the external outdoor temperature sensor has an open or short circuit. Switch off the boiler and contact a Gas Safe registered engineer to check the sensor connections or replace the sensor if necessary.

What does error code 938 mean on an Ariston heat pump?

Error code 938 on an Ariston heat pump or water heater indicates an anode fault - the sacrificial anode in the hot water cylinder may need replacement. Contact a qualified installer to check and replace the anode to protect the cylinder from corrosion.

Why does my Ariston boiler keep losing pressure?

Common causes of pressure loss include leaks in the heating system (pipes, radiators, or boiler), a faulty pressure relief valve (PRV), expansion vessel problems such as a torn membrane, or recently bled radiators.

Why is ice building up on my Ariston Nimbus heat pump outdoor unit?

Some frost is normal in cold weather, but excessive ice buildup indicates the defrost cycle is not working properly. This can damage the compressor and reduce efficiency. Check that airflow around the outdoor unit is not blocked by debris, leaves, or snow. If ice persists, contact a qualified heat pump installer to check the defrost sensors and system.

How often should I have my Ariston boiler serviced?

Your Ariston boiler must be professionally serviced every 12 months by a competent person in compliance with current national regulations. The first service should be completed within 12 months of installation.

Why is my Ariston electric water heater making unusual noises?

Unusual noises typically indicate limescale buildup inside the tank, which is common in hard water areas. This buildup increases heating times and energy costs. Do not attempt to inspect or repair the unit yourself. Contact a qualified technician for descaling and inspection. Always ensure the water heater is switched off at the electrical supply before any maintenance work is carried out by a professional.

How do I drain my Ariston unvented cylinder?

Switch off electrical power to the cylinder. Turn off the cold water supply and close the hot water outlet valve. Connect a hose to the drain cock at the bottom of the cylinder and place the other end in a suitable drain or basin. Open the drain cock and then open the temperature and pressure relief valve to allow air into the cylinder and enable draining.