lennox pulse furnace

[mb20fan]

Anyone ever replace the 3/4 hp blower in the g/14q.Lennox say`s I have to buy there's it`s heavy duty and any other 3/4 hp motor will fail fast.Well the motor they sell is close to 350.00 and they don`t have one here close.It`s fricking cold out here in Ann Arbor.My normal supply house has a 3/4 hp motor and cap for under 200.00 that will fit lennox mounting bracket.

[martyinlincoln]

Pressure tested the heat exchanger yet? No sense sticking a motor in if the heat exchanger fails inspection.

[t527ed]

yes it's expensive, others will fail.
remove your pricing and pressure test the hx.

[mb20fan]

yes it's expensive, others will fail.
remove your pricing and pressure test the hx.

i got a ao smith motor it has no white wire or neutral wire.So what wire do I use for common.

[Rob_in_WV]

The wire designations should be listed on the tag on the motor body. What is the motor part number?

[JAYLUPARK]

Yellow is usually common if no white.

[Milk man]

Replacement motor will probably fail soon. I'd do OEM only.

BTW, did the furnace pass the pressure test?

[jhunter97]

Id replace the whole furnace parts becoming mor and more obsolete be much better in Long run to replace. Great rebates to replace!

Sent from my HTC Hero S using Tapatalk 2

[crmont]

Yellow is usually common if no white.

Um that's probably incorrect. I Hate to see a smoked motor.

[small change]

AO Smith has some Blower Motors that have a yellow wire as common

Also they sometimes use purple and of course white

[pacnw]

I have seen the statement "... yellow/white for common..."
But as stated, there should be a reference on the motor itself!!

[GastecD]

Agree with changing the furnace, once you have to change out a spark plug youll be wishing you had

[DOGBOY]

Agree with changing the furnace, once you have to change out a spark plug youll be wishing you had

I can change out the flame sensor and spark plug in less than 5 minutes. that is being at the furnace it has cooled down & the little panel already off. There are easy ways to do a lot of jobs you just have to think outside of the box.

dogboy