The FX37FSA is a very reliable electronic ignition controller that is used in many gas appliances including boilers, fires, tumble dryers, etc. It incorporates fan proving and monitoring for those appliances that need one. This means a separate fan proving control is not required. It can be made compatible with many other ignition controllers. If you can not find one for your control, please give us a ring or complete our Ignition Control Specifier.
Important Notice: If replacing an FX37 that is more than 10 years old, you must check the connector on it as it could be different from the one on this control. All current FX37s have a green connector on them as shown in the picture on this page and require a mating half (also green) to be purchased separately if replacing a very old version of the FX37 or an FX30SPT.