P/n 016-4181 trigger/handle

When you put the tank on it connects with the unit and opens the valve on the bottom of the tank to allow the water to flow check for debris hair etc around the connection, it is possible the seal itself is worn or bad and needs replacement but I think the trigger only lets air in the tank so the water will flow out by gravity, I'm not positive on this but mine works that way.

Remover the upper handle assembly and check the linkage (inside the upper handle) where it connects to the button/trigger assembly in the handle grip. This may have detached or the trigger may be loose from its mount in the handle. Reattach or replace the broken part.

Hi there! If the spray trigger is stuck try removing and replacing the handle. Remove the two screws that attach the handle. Slide the handle off. Inspect the two rods inside of the handle for damages. Make sure both rods are pulled down. Replace handle and two screws. If the spray trigger is still stuck or if the rods were damaged in any way a replacement handle may be needed. If so I have included a link where you may purchase a replacement handle. Search Results Good luck!

Hey there! Sounds like you have no tension in your trigger. This could mean a problem with the trigger spring or control rod in the handle. Try reassembling the handle. Remove the two handle screws and slide the handle up and off. Inspect the control rods for damages. They should be the same length. Make sure they are pulled down as well. Reassemble the handle. If the trigger still has no tension but the cleaner dispenses from the hose, a replacement handle may be needed. To replace the handle, follow the link below.
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Hope this was helpful!

I had the same thing happen to mine and I disassembled the handle area. It was not broken and only needed to be put back in place and has worked since then although I'm very careful when I use the trigger now. Hope this helps.

from your description, the trigger sounds like it is stuck in the release position. this sounds like a very simple repair. The component parts need to be looked at by a service shop

I’m happy to assist further over the phone at https://www.6ya.com/expert/robert_b96ba3f038cf317c

Be sure to get a good washer on with the connection. They're easy to buy at any hardware store. You can also put white plumbing tape around the threads before screwing them in to make it really fit.

They are just a coarse thread(very coarse) about 3/4 in long, phillips head.

The connection for the hose to the cleaner is also a valve assembly. There is a white plastic spring- loaded sleeve that the hose must push in for water to flow into the hose. Part # is 43523004. This is a rather flimsy part, mine cracked and cleaner continously leaks out the backside of the valve housing until the tank is empty GRRRRRRR!

www3.sears.com there are diagrams and parts lists for similar model F7452-900.

I went to the hardware store and they 'rigged' a fitting for me.