My furnace was not responding to thermostat input so I purchased and installed a new thermostat which did not fix the problem. I called HVAC Service on a Sunday and they showed up promptly. The technician checked various things in the furnace, then declared that the problem was with the inducer motor, the blower and two pressure switches. He told me that he probably didn’t have the parts with him because it was a brand not common in Canada. He told me that the cost for the repairs would be about $2000. He spoke on the phone to his office and then handed me the phone. The woman on the other end said they could install a new furnace for $5100. The furnace is only six years old. The tech told me to turn the furnace off because it was probably unsafe. I told them both I would get back to them and I arranged for another company to come in. After HVAC Service left on Sunday the furnace was working and responding to the thermostat. The technician from the second company told me there was a no problem that he could find. He asked me if there had been any flashing lights (there had been). He said something triggered the fault and by turning the power off and on, reset it.
