Greenstar Comfort I RF Wireless Thermostat 7733600001

Product Information

The signal ranges from 1-10. Any signal above 4 is acceptable. However, any signal greater than 7 is better to ensure consistency. When installed by a Worcester Bosch Accredited Installer with a Greenstar System Filter. The Greenstar 1000 and Greenstar 2000 guarantee is available as standard to both Excelerate members and non-WAI's, when fitted with any brand of system filter. Terms and conditions apply. Wireless thermostats may not work for you if the receiver is too far from the desired area or if structural features such as steel joists interfere with communication. Engineers might be able to move the receiver to a better spot so that your central heating works better. Worcester Bosch refers to this code as “Loss of RF Signal”. Radio frequency refers to the way that a thermostat wirelessly communicates to the boiler to inform it when to turn off. The boilers have a temperature sensor inside that tells it how hot or cold it’s in a given room.

Most people place it in their living rooms as this is where most of their time. It should be kept out of direct sunlight, near heat sources or in areas that can affect temperature. If the thermostat was installed in recent times, it is possible that it has not been in a position to communicate with its receiver.

Comfort+ II RF Installation and User Manual

Batteries can cause the A21 error code. Once this is done, you can program the thermostat to your desired settings again. Do you need a Gas Safe engineer??

Because radiofrequency communication is used to communicate, any device will compete for ‘airspace. Repairing an Interruption of the RF Connection DIY Solutions to Try This guide will explain what to do, how to fix your Worcester Bosch boiler controls and when to call an expert to complete further repairs. Worcester boiler A21 error code wireless thermostat issues The A21 error code can be removed from your thermostat’s screen easily by resetting it using the reset button. Alternate models have a central heating temperature knob that can be used to reset the boiler. There are many steps you can take before calling an engineer to repair or diagnose the thermostat.After examining all possibilities, your engineer may suggest that the problem is caused a defective component. Before the introduction of A21 codes, your display might have displayed a low battery symbol. This means you have 60 days before your thermostat stops working.

Once the temperature is recorded, the thermostat sends an alarm to its receiver partner (also known as a receiver). Keep in mind that the thermostat will regulate the temperature of the heating system, not the hot water.The method used to accomplish this depends on the model. These steps can be used for most Worcester Bosch thermostat models. The process will be the same for most models. If you cannot locate an opening on the thermostat’s manual you may want to consult it. This is particularly true in modern housing which contains steel components such as rolled joists and layers within walls, as well as foil-lined plasterboard. If your thermostat is out of range of the receiver, try this: