Vasco Appliance Repair in Newtown and St Leonard's

What does Error 12 mean on a Vasco electric radiator thermostat?

Error 12 on a Vasco thermostat indicates a communication fault between the thermostat and radiator. Switch off and unplug the radiator from the mains. Remove the thermostat batteries, wait two minutes, then reinsert the batteries and restore power. The system should resynchronise automatically.

Why won't my Vasco radiator cool down when the heating is off?

If your Vasco radiator remains hot when the heating should be off, the valve is not closing properly and allows hot water to continue flowing. Contact a qualified heating engineer to inspect and replace the valve mechanism.

Why are there black marks appearing on my ceiling above my Vasco radiator?

Black marks on ceilings or walls near radiators are often caused by a phenomenon called fogging. This occurs when semi-volatile organic compounds from household materials are released when heating is turned on and deposit on surfaces. This is not a radiator fault. Ensure adequate ventilation, especially during the heating season and after renovation work. The marks may require specialist cleaning products to remove.

Why is my Vasco electric radiator not heating even though the remote shows it's cold?

The RF remote temperature reading is indicative only and may differ from the actual temperature at the radiator's sensor, located at the bottom rear of the unit. Cold draughts from open doors or windows can affect sensor readings. Consider disabling open window detection or calibrating the temperature sensor.

Why is the boost function not working on my Vasco electric radiator?

The boost function may not work if the thermostat is not connected to the blower unit, open window detection is enabled, the target temperature has been reached, or the radiator lacks power. Check these factors and disable open window detection if needed. You can also activate boost directly on the blower unit.

Should I turn off underfloor heating when I'm not at home?

No, do not turn underfloor heating off completely when away. Set the thermostat to 14°C for extended absences. Underfloor heating takes on average one to one-and-a-half hours to change temperature by 1°C, so it responds slowly to adjustments.

Do I still need to place radiators under windows?

In older, poorly insulated homes, placing radiators under windows remains advisable to combat cold draughts from single or poor-quality glazing. However, in well-insulated homes built within the last 20 years, radiators can be positioned anywhere due to improved glazing and insulation.

How often should I bleed my Vasco radiators?

Bleed your radiators at the beginning of the heating season to ensure they are ready for winter. Additionally, bleed them whenever you notice warning signs such as gurgling or ticking sounds, or when the heating is not providing adequate warmth.

How do I calculate the correct heat output for a Vasco radiator?

Use the formula: square metres × watts per square metre = required heat output. A radiator's heat delivery is expressed in watts, and the required output depends on the room type, desired temperature, insulation level, and heating system type.

What happens if the supply and return pipes are connected the wrong way round?

If the supply and return pipes are reversed, the radiator will not heat properly or may only warm partially. To identify the correct connections, increase the thermostat setting and feel which pipe heats up first—this is the supply (flow) pipe.