I HAVE A SINGLE HANDLE BELANGER SHOWER FAUCET, INSTALLED AND READY TO GO, PROBLEM IS I CANT GET HOT WATER THROUGH THE FAUCET. I DRILLED A HOLE SO I COULD GET TO THE LIMMITING VALVE AND MADE SURE IT WAS SCREWED ALL THE WAY OUT AND IT WAS. THEN I REMOVED THE HOLE SWITCH TURNED ON THE HOT WATER AND THERE WERE NO RESTRICTIONS THERE. PUT IT ALL BACK TOGETHER AND STILL NO HOT WATER. ANY SUGESTIONS. I'M THINKING THAT THE UNIT IS FAULTY

remove and turn cartridge 180 degrees then re-install

change the cartridge

Check the hot water shut off valve, when the washer fails sometimes the valve itself sticks closed, and sometimes the washer breaks up and clogs water passageways down stream...
To test, pull the hose off of the hot water shut off valve, open the valve and see if you have water flow. (route hose into a bucket, you need more that a small amount of water.....
If you have good water flow from the shut off valve, then you likely have a particle that has lodged in the passageways of the faucet. Reverse flow with air pressure and see what you get out....

Many single-handle shower mixers have a hot limit, usually limiting the throw of the handle. You could go to the mfg's website (www.deltafaucet.com) & find instructions for adjusting it. Or, if you're handy, you could take off the handle & have a look; it shouldn't be too hard to see what's stopping the handle from turning more towards the hot side. Make changes in small increments & remember where you started.

If I understand correctly, you have single handled shower faucet.
Normally there is a wait for hot water to arrive at faucet.
But now hot water is already at shower faucet.

Single handled faucets have a mixing area inside valve where hot and cold come together before going into sink.
This mixing valve can have crossover where the hot and cold can pass through to each other even when faucet handle is off. When single handle faucets get old, this can happen.
How it happens:
For example another faucet is turned on inside house, and pressure differential between hot and cold causes hot water at shower handle to pass through mixing area and into cold water line.
So if another faucet has been run, then that lets hot flow to faulty single handled shower faucet.
To confirm this is the problem: turn on other faucet and put ear against shower faucet to listen for moving water.
This condition may also signal there is a water leak.
The problem is not harmful, but will draw cold water into water heater each time, and is energy wasteful.
Replace faucet or have plumber repair problem.

Replace valve canister- no construction- just remove after taking time to shut off water- a few screws and the job takes 15 minutes. I take for granted you have good water hot/cold to the fixture. This fix will cure most temperature balance problems.
The single lever system is a EZ care system. Note the canister can malfunction faster when exposed to untreated hard water.

were there any thread protectors inside the hot and cold inlets? sometimes they put Styrofoam pieces inside to keep debris out of the inlets and outlets. inspect inside of valve body through inlet holes thoroughly

adjust ur anti scold the setting is set to low when single handle shower units are shipped they are set in cold mode for safety ur install/instructional paperwork explains such and also advises on how to adjust---remove handle and on shaft will see a blue and red plastic clips that are adjustable slide towards u and move red for more hot water test water continue till comfort level is reached for hot water

you can try drilling a small pilot hole and then use an "easy out" (get'em at any hardware store). or take some large pliers and break the plastic handle and remove the whole cartridge. Go get a new cartridge and handle. Make sure main water valve is shut-off prior do doing so though.

change the cartridge it is bad or defective.