Wonderful service and great technicians!
Our new Lennox furnace was installed by L&S in 2009 and stopped working in 2014. Called them and a technician came the next day to inspect and two days later they replaced the circuit board.
It worked fine till two days ago when it stopped igniting. So Mack came early yesterday, cleaned it and found that the problem might be with either the circuit board or the igniter (igniter failure error code). It worked fine for more than 12 hours but it was not starting during the night. I reset it several times during the night and early morning but the furnace kept giving the same error code. Called the office and less than 2 hours later Ken showed up with a new circuit board. He replaced it immediately, tested the system and now it work as expected.
Fortunately I kept a copy of the extended warranty provided by Lennox for the furnace and had to pay only the installation fee, which is normal.
Hope I don't have to see L&S technicians until next year for a yearly maintenance/clean-up of the unit.
Very professional staff. Thank you Ken, Mack and all the others from L&S for the prompt service!