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Vantech bathroom fan - the damper doesn't close. How can I clean

How can I clean the damper hinge so that it will operate freely?

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You can use Rubbing Alcohol and a Q-Tip.
You can take that one out and install one of their RSK Series Backdraft Dampers.
They work very well and they are not expensive.
They can be purchased at or

Note: RSK4 is 4", RSK5 is 5" and so on.

Posted on Feb 10, 2009


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I have a colt Agent 38 special. The cylinder is very difficult to push open and closed. It spins freely when open and shoots fine. What can I do to make it easier to open and close?

Hello Greg Anderson,

That is a beautiful piece.
The release and drop hinge should both operate quite easily and freely. One of the smoothest actions I have ever felt ...

I would suggest you scamper on down to you local friendly SMITHY to purchase a cleaning and lube kit... but more importantly to get and EXPERT opinion on needed SERVICE
or possibly a REBUILD.

There are more complex & critical internal MECHANISMS
that if are LIKEWISE malfunctioning could be quite dangerous.

Be safe.

Oct 21, 2016 | Cars & Trucks

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I have a daewoofrg1820brb I've had it plugged in 4 2 hrs now freezer is cold but the bottom isn't getting cold

Remember that most all refrigerators only have cooling to the freezer... the refrigerator depends on stealing some of that cold to be cool, so here's my top 3 guesses...
Cause 1 The defrost heater is defective, so frost accumulates on the evaporator coils, and the coils will become plugged with frost causing the airflow through the coils to be restricted, and the refrigerator not to cool. Check the evaporator coils to determine if they are frosted over. If the evaporator coils are frosted over, test each component of the defrost system after clearing any restrictions to the cooling fan and defrosting with a hair dryer.
Cause 2
The evaporator fan motor draws cold air over the evaporator coils and circulates it throughout the freezer. If the evaporator fan is not working, the freezer or refrigerator will not cool adequately. To determine if the evaporator fan motor is defective, try turning the fan blade by hand. If the fan blade does not turn freely, bench test it for function and use a multimeter to test the motor windings for continuity. If the windings do not have continuity, (very odd) replace the evaporator fan motor. Cause 3
Damper Control Assembly The air damper control opens and closes to let the proper amount of cold air into the refrigerator compartment. If the damper does not open properly, it won't let enough cold air into the refrigerator. Check the damper control to determine if it is broken or stuck closed or that an inadvertent bump has shut it off to the refrigerator compartment

Apr 09, 2016 | Refrigerators

1 Answer

One of my hvac dampers is stuck open

Zoned forced air systems that use multiple thermostats that can start a single heating and cooling unit from each stat and condition just that space that called it, are conditioned by the auto damper you are referring to. These dampers are normally spring closed and driven open using a small 24 volt motor (Called an Actuator or Operator) connected to the stat that operates the damper motor with a relay. Disconnect the damper crank arm and linkage between the damper and its motor and see if the damper rotates closed. See if the damper will move freely. Power and remove power from the motor to see if it works. Doing these things will probably find the problem. Good Luck. Roger

Apr 23, 2014 | Heating & Cooling

1 Answer

I have my Edison 40 running at the highest setting (lowest humidity) and it isn't lowering my humidity. The hose to my floor drain emits only a tiny drop once in a while. Is there something for me to...

Ronald, first,check the air in take filter for dirt and/or clogs. Also check your drain hose for a blockage, as well as the hose connection on the unit. In addition, if the cooling coils are dirty, this will cause the unit to strain to keep up. You should be able to access them, after you remove the air intake filter. Clean them with mild soap and warm water. Rinse and thoroughly dry them, before applying a very light coat of WD40. CAUTION: BEFORE ATTEMPTING ANY SERVICE ON THE UNIT, TURN THE MASTER ON/OFF SWITCH TO OFF AND UNPLUG THE UNIT.

I assume you have one of the older Edison 40 Dehumidifiers, that doesn't have an LED readout. And this is where it can sometimes get confusing, when setting the humidity extraction level. Maximum doesn't always indicate the maximum extraction level. And in your case, I believe if you set it on Minimum, you would get better results. Always allow a minimum of 12" clear air space all around the unit, while in operation.

If, after you troubleshoot the above things and want to do a good in home test of the unit. Move the unit to the bathroom, plug it it in, turn it ON and set it for Minimum. Turn the shower ON hot enough to generate steam. Do Not turn the bathroom exhaust fan ON. Close any window(s) that may be open. As you exit the bathroom, close the door. Wait 15 - 20 minutes before returning to the bathroom. Then turn the shower OFF and allow the dehumidifier to run additional 5 minutes. Turn the unit OFF and check the bucket for signs of water. If you find some, the unit is working as it should.

If you find n water in the bucket. The unit's compressor probably needs a recharge of refrigerant gas.As the level may be low.

Hope this helps you to troubleshoot and solve the problem. Please let me know. Thanks.

Jun 08, 2011 | Edison 40 Pint Dehumidifier

1 Answer

I have 80 bath exhaust fans in the hotel that I maintain. There is a loud dripping noise coming from a few of them but no sign of water at the top housing (from attic). I contacted a "professional" and...

I would expect that each fan has it's own damper right there at the fan. Otherwise, one room's fan would blow another with which it shares ductwork. I have stayed in hotel rooms where cigarette smoke came into my room through my exhaust fan unless I ran my fan. So, why would some of the dampers tend to flap? You'll have to take a look. Maybe they have counterweights or springs to hold them closed. Maybe they are missing or adjustable. Maybe the problem only exists when the guest has their windows open - which could cause the dampers to flap in the changing breezes.

May 24, 2010 | Home

1 Answer

I have two bathrooms directly under each other. The hinges on both cabinets (under the sink) are rusted and the pipes going from the wall to under the sink are also rusted. There are NO LEAKS ANYWHERE in...

You can't stop condensation or humidity in the house, especially in the bathrooms. A few choices: replace the hinges, or oil the hinges with WD-40. Install a vent fan (even though you have a window) and replace the pipes with PVC pipes. Metal drain pipes will always rust, because they drain water. Replace all under sink drain pipes with PVC

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1 Answer

Bathroom doorknob stuck in locked position.


I will tell you how to fix 'em. Open the Door Knob with a screw driver, gently pull aart the two knobs once open, then look for a long sliding rod, pull one knob away, twist the Knob untlil it is in unlock position, put them back together to test if it slips properly. If it does not, there is something preventing the rod from rotating freely. Try to ensure it rotates freely. Then screw back together :)

Nov 18, 2009 | Hardware & Accessories

3 Answers

My Bathroom Extractor Fan does not work properly and for some reason the bathroom smells of cigarette smoke when the upstairs neighbours are at home!! Our landlord say's this is not possible!!!

Yes, very possible!. The bathroom fan is connected together, and the upstairs one is down-drafting to you. Have the exhaust checked for blockage, or buy a fan that has a built-in damper that closes the exit when not in use.

Oct 21, 2009 | HP Extractor Fan Kit 110V Rack Mount Fan

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