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Lennox Furnace 2-Speed Noise Scooter 01-20-2007
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Posted by Scooter on January 20, 2007, 8:18 am
I have a new Lennox G61Mp-48C furnace. It is a 2-spped unit. If it
has been running at high speed and the thermostat has reached it's
setpoint, aand the motor is switching form high to low speed we hear a
bang much like ductwork flexing but it seems to be coming from the
furnace cabinet and not the ductwork. Ideas?


Posted by Noon-Air on January 20, 2007, 9:28 am

>I have a new Lennox G61Mp-48C furnace. It is a 2-spped unit. If it
> has been running at high speed and the thermostat has reached it's
> setpoint, aand the motor is switching form high to low speed we hear a
> bang much like ductwork flexing but it seems to be coming from the
> furnace cabinet and not the ductwork. Ideas?

yup... call the installer



Posted by on January 20, 2007, 9:40 am
"Scooter" wrote:

>I have a new Lennox G61Mp-48C furnace. It is a 2-spped unit. If it
>has been running at high speed and the thermostat has reached it's
>setpoint, aand the motor is switching form high to low speed we hear a
>bang much like ductwork flexing but it seems to be coming from the
>furnace cabinet and not the ductwork. Ideas?


hell yes I got ideas.

Posted by on January 20, 2007, 2:53 pm

> "Scooter" wrote:
>
> >I have a new Lennox G61Mp-48C furnace. It is a 2-spped unit. If it
> >has been running at high speed and the thermostat has reached it's
> >setpoint, aand the motor is switching form high to low speed we hear a
> >bang much like ductwork flexing but it seems to be coming from the
> >furnace cabinet and not the ductwork. Ideas?
>
>
> hell yes I got ideas.

Some of them are even good ones! <g>



Posted by danger@heat.com on January 20, 2007, 4:52 pm
Well it's pretty simple, find the duct thats banging and support it.

-Canadian Heat


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