The down draft vent although clean, including the grease filter has developed a bad odor which is more noticeable when not running. The odor does not seem to be coming from outside. Your guidance is appreciated.
ANSWER Hello Rudy. If the odor is coming from outside, you will need to install a damper into the vent pipe to prevent air from backflowing into the vent unit.
Answered by AppliancePartsPros.com | Monday, February 11, 2013