Furnace blower is weak

[Cayman]

We bought a used 2004 Cayman and while the furnace does manage to heat the coach, the air blowing from the registers is hardly noticeable. I'm wondering if this weak airflow is normal or perhaps I have a disconnected duct somewhere. Any ideas?

[wa8yxm]

Normal air flow, if it was weak burner would not come on.

Suggestion.. Clean air ducts epically the area directly under the registers.

[jacwjames]

Most of the time the duct work is hidden below false floors in the cabinets. Pull up the floor and check the routing of the duct work to make sure it isn't kinked. Also make sure the duct work is securely fastened to the furnace and each of the vents. Any place the air has the ability to escape will reduce airflow.

[Chavau]

Check your exhaust on furnace sometimes dirt dobbers will build nest in the outlet tube restrict air flow

[Cayman]

Originally Posted by wa8yxm

Normal air flow, if it was weak burner would not come on.

Suggestion.. Clean air ducts epically the area directly under the registers.

The flow may well be sufficient through the heat exchanger but if a duct is disconnected it will not get into the cabin. I guess my question should have been "how much air flow can I expect to get from the furnace registers?" Mine seems almost nonexistent. Time to root around the duct work.
Thanks!