Have a new High Efficiency Trane Gas Furnace. Every time it fires up the picture on a TV set (rabbit ears antenna) on the floor right above it goes haywire. The picture becomes almost unwatchable because of all the noise streaks and snow in it. The source of the problem is the Vent Blower (Inducer motor)--the electrical noise is only present when it runs. So far, following Trane's service Tech instructions, the HVAC Co techs have done the following:
- Checked to make sure that there is a good ground between the furnace and the earth ground.
- Replace the wiring harness to the vent blower with a shielded harness--Trane may call it a shielded harness but the shielding ends about 6 inches from the motor. So there is 6 inches of unshielded wiring which to me is like not having any shielding at all.
- Replaced the control board. Why they haven't suggested replacing the Vent Blower is a mystery to me. However, while there has been quite a bit of improvement the TV noise problem still exists. Now waiting on the results of a discussion between HVAC Co.and Trane. I've been told that I'm not the only one that has experienced this problem. Has anyone else seen something like this? MLD