Clients boiler was 30 years old and the pilot would not stay on. It was freezing cold and he had no heating for five weeks. He had no money for a new boiler. All the other plumbers told him that spares were no longer available for Servowarm boilers. I ordered a universal interrupted thermocouple from gasboilerparts.co.uk . It came the next day. The coupling nut into the the gas valve was the wrong thread but I cut a slot in the old one and used that. All is well.
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