View Single Post
  #3   Report Post  
Bob Pietrangelo
 
Posts: n/a
Default

It depends on the model of the equipment XV90 has a variable speed inducer,
XL80,XV80,XL90 all have 2 stage inducers. We need more info. Don't thye
have cable or dish in your neighborhood. What happens if you move the TV,
shouldn't be hard with no cable. Does it do it the entire time the
equipment is running or for a shorter period of time. If it is a 2 stage
system does it hapen on low and high fire.

--
Bob Pietrangelo


www.comfort-solution.biz
On Time or Your Service Call is FREE
Preventive Maintenance Specialist




"Brian O" wrote in message
...

"MLD" wrote in message
news:vU3Yd.65224$W16.61022@trndny07...
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:
1. Checked to make sure that there is a good ground between the furnace

and
the earth ground.
2. 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.
3. 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

Isn't there some sort of capacitor (condenser) associated with these

motors?
Being an electronic technician, that would immediately draw my suspicions.
B