Model #639 Official Broan venting system
Here are the diagrams and repair parts for Broan 639 venting system, as well as links to manuals and error code tables, if available.
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Showing 9 of 9 parts
Damper rod
Range hood damper door bushing
Foam strip
Damper flap
Housing(painted)
Part #97006177
The manufacturer no longer makes this part, and there's no substitute part
Installation manual
Part #99040510C
The manufacturer no longer makes this part, and there's no substitute part
Symptoms common to all downdraft ventilation systems
Repair guides common to all downdraft ventilation systems
The up/down switch starts the gear motor to raise and lower the air vent. Replace the up/down switch if defective.
The blower motor spins the fan blade that removes smoke and steam from the cooktop area. Replace the blower motor if it doesn't run when activated.
The gear motor raises and lowers the air vent when you push the activating switch. Replace the gear motor if defective.
Articles and videos common to all downdraft ventilation systems
Find out how to stay safe when repairing your appliances.
Learn some of the most common symbols found in a wiring diagram and what they mean.
See what to check if you are having a problem with a retractable downdraft vent.