Pinnacle Raised Vent System #RV36 or RV 46

check the bossing or the bearing of the vent put/spray oil or grease on bearing and shaft.....

Hi,
Some units have a dead man switch, which means that if the filters are not in place correctly the blowers will not operate. Its a safety thing to prevent little ones from dropping toys into a running blower. Double check the filters placement, if the filters are in the proper location than I would look at the power to the blower unit. The vent has two jobs, (1) to raise and lower, (2) to turn on the blower unit once in the full up position. If this is not the case, the upper switch in the vent system has failed. If you already confused, you will need to call a Viking expert to correct this problem. Its not difficult but can be time consuming.
I hope this helps
I have seen this problem twice and found the filters were the problem, rarely replace blower motors..

I’m happy to help further over the phone at https://www.6ya.com/expert/gere_bf68e6055dd61249

Hi, I'll try to help. What is the model number?

Is this the part you are looking for http://cgi.ebay.com/Jenn-air-Range-Grill-Vent-Cover-Chrome-Down-Draft-Vent_W0QQitemZ220536707181QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item335903186d

run with vent off for 1 load and see what the results are, just cause you have airflow does not mean it is sufficient, too long a vent can cause that too. and low heat is almost impossible, check it with a thermometer at the exhaust, no vent connected, it should read 155 to 170, it will go up and down!

You need to install a damper. It sounds like your vent now just vents into the attic and out the attic vents. If that is the case, or even if it vents directly to a roof vent, you can install a damper that only lets air flowe one direction.



Here is just one source of many that you can purchse dampers from.
http://www.rewci.com/416splobada.html

The damper would be installed in the exhaust duct. If your vent pipe is connected to a roofmounted vent, you can replace the vent with a dampered vent.

I just had a similar problem. The switch knob, and backer for the blower got jambed in the housing. After pulling it all apart I called the parts center at Thermador and ordered a new switch. If you can hear the motor the raises the unit run, then that could be your problem.

How do you get the inside area of the vent clean from the grease and oils where the filter is?? I have a rectangular box style downdraft that the vent goes into the floor, I pulled the filter, but the box is to slender to get an arm into to scrub the grease....... does the bottom come off, or is it a sealed unit? How do you get all the brease from the bottom if you cannot reach it?

The cost of the parts you want t o replace will usually exceed the price of a new cooktop.

sounds like yo u have a faulty home switch. when dropped to lowest setting it should switch off electric. however if switch is bad never senses its down adn thenwants to open back up. there should be an acces panel in lower right corner of unit along witha wire diargam