If an oil boiler is working but the water temperature is low, a heating engineer should check the following. Please note, it is important to always isolate the electricity supply to the boiler before working on the boiler.
Have more questions? Submit a request
View and download the latest product brochures, data sheets and installation manuals for all of Grant's oil boilers and renewable technologies including heat pump schematics
Search technical specsDiscover about home heating advice for oil boilers, heat pumps and new technologies with our blogs for homeowners and professionals
Visit our Home Heating BlogAlternatively you can speak to a member of our team - Subject to Operating Times