Jim was my service tech that had come out on the 2 visits i had. Our heat stopped working New Years day night. Called and he was to my house at 12 midnight. Pressure switch was sticking and recommended replacing. He would have to order. The furnace was working when he left but no guarantee as to how long it would. Had him order switches. Came back out and replaced the 2 pressure switches and all good at this time. Pricey but very courteous, prompt and they get it done. Thanks you!