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Hi, I thought I'd let people know that there is a company advertising on eBay right now who have a small number of reconditioned Airflow Sensors, i.e. the part I was looking for, no. 300303, that is obsolete from the manufacturers. In case anyone is still trying to fix their Potterton Lynx...

Sorry, I realise this phrase was something of a euphemism. The engineer did a test where he isolated the unit from power, removed one of the airflow sensor connector leads, re-powered the unit and re-connected the (hot) lead. This made the flame ignitor go into a mode of repeatedly igniting...

Hi, thanks for taking an interest. As it happens the chap fixing it checked the wires to the sensor and the pcb solder joints (which check out) and says the problem is with the sensor not re-setting itself. He said he would fit another sensor if I could source one but won't do anything ad...

Hi, I have a gas combi boiler Potterton Lynx 1 that works well except for the airflow sensor (diagnosed by ex-BG.) From reading this site I have worked out for myself that this is a common fault and that the part is obsolete. So, this inevitably leads me to the question: can anyone help me...