Oil Fired Furnace needs Occaisional blower rest

[jazpek]

Have a situation where the Blower motor cuts out maybe once or twice a week.
Chimney replaced by Power Vent during remodel 18 months ago.
Issue May have begun then, homeowner cannot recall.
Beckett blower motor appears new
Thoughts?

[billg]

Is it a miller furnace?

[snupytcb]

Is it a miller furnace?

i have never seen a pwer vented miller. can this be done? and why?

more info please. does just the motor stop? is it a limit? have you done any testing? now that i read it more, do you meen burner motor? that could be a power venter issue. has the ho contacted the company who installed the venter?

[jazpek]

Is it a miller furnace?

no,

[jazpek]

Yes, motor just stops
No testing done

Unit is an:
OLSEN
Model # MPL 120
Rated at 117,000 btu/hr

Homeowner refuses to allow PV installer back on property after they left all install debris down in crawl space (ugh)
Took a couple pics.
Trying to figure out how to attach or embed

[billg]

It could be that when they installed the power vent they wired it through the cad cell relay. The relay may be timing out before the pressure switch makes burner starts and flame is proven, or any other number of things like misadjustment, dirty, etc.

[Tecman1]

If you think this is due to the install of the power vent take a look at the draft proving switch often these are clogged. In any event if the draft does not prove the burner is wired into the safty circuit and will shut down. This can be intermittent like you have experienced.

[pacnw]

not the blower motor, but the burner motor.

how do you reset it and why are you blaming the motor?

[jazpek]

If you think this is due to the install of the power vent take a look at the draft proving switch often these are clogged. In any event if the draft does not prove the burner is wired into the safty circuit and will shut down. This can be intermittent like you have experienced.

Sounds reasonable, thanks

[hearthman]

At the lower right of the Reply page, you'll see tabs. Click the middle tab "Go Advanced" then below the window you type in you'll see "manage attachments". Click that then follow the text boxes for selecting, uploading and attaching files.

If this power vent blows out, it is illegal. If it is a wall mounted exterior exhaust then it may be ok. Meanwhile, can you provide make and model of PV?

[jazpek]

Sounds reasonable, thanks

The Power Vent is a:
Tjernlund SS2 Sideshot
Model SS2

[jazpek]