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thermador downdraft vent

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Oven Repair (including Ranges and Cooktops)

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Snorkel hangs, then drops when it goes about 1/2 way down. I can put pressure on the vent when it

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  #1 (permalink)  
Old 07-31-2012, 05:35 PM
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Default thermador downdraft vent
Model Number: cvs30r   Brand: Thermador   Age: 5 - 10 years   

Appliance Parts from AppliancePartPros.com


Snorkel hangs, then drops when it goes about 1/2 way down. I can put pressure on the vent when it retracts and it works correctly. On its own, it hangs then drops.
After removing lower access panel and blower for inspection, now the unit still hangs when going down but also continues to go up and down. It does not stop when fully up or down. Any idea what is going on? Your help is appreciated!


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Last edited by Steve Y : 08-01-2012 at 05:10 AM. Reason: added issue
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  #2 (permalink)  
Old 08-01-2012, 06:01 PM
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Hi Steve,

The problem can be a bad/misaligned limit switches and/or a bad drive assembly. You can find the instructions in the attached service manual.

Here are the breakdown diagrams and Replacement parts for Thermador CVS30RS COOK "N" VENT DOWNDRAFT SYSTEM | AppliancePartsPros.com

Gene.
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File Type: pdf ServiceManual_rh30019e_CVS30-36-45.pdf (494.8 KB, 65 views)
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Old 08-01-2012, 07:40 PM
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Default Cvs30rs

Quote:
Originally Posted by Gene View Post
Hi Steve,

The problem can be a bad/misaligned limit switches and/or a bad drive assembly. You can find the instructions in the attached service manual.

Here are the breakdown diagrams and Replacement parts for Thermador CVS30RS COOK "N" VENT DOWNDRAFT SYSTEM | AppliancePartsPros.com

Gene.
Thank you Gene. After disassembly, the problem turned out to be a lose screw on the motor arm connecting it to the motor shaft. It caused the snorkel to drop and was lose enough to miss the limit switches. After tightening the screw, all is well.
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Old 08-02-2012, 11:26 AM
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You are welcome Steve. I'm glad you were able to fix it and the problem was that simple.

Thank you for the feedback.

Gene.
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