Dave asked ... Repair kettle lid?    |    Sandy asked ... Replace vertical gear on Singer Fashion Mate 252?    |    Blaablaa asked ... How can I fix?    |    pete asked ... Flymo 330 turboglide?    |    keith asked ... Fuseboard( s) location of renault trafic t1100 1993?    |    Click here to ask your question

Optimax he plus boiler showing F37?

Tried loosening both black valves, no hissing or system filling, pressure gauge reading 1.5. Not sure what else to try
R Clark, December 2014