Top 20 Delta & Single Handle Shower Faucet Questions & Answers

Was it hot enough before the Delta? If so open and close the hot water valve (under the sink) several times as there maybe mineral deposits. I know you said the flow is the same on hot and cold but unless your version is a single handle model the problem should lie with the valve. If this is a cartridge model (cold & Hot together) then the cartridge may be out of align allowing the cold and hot water to mix.

take the details to a plumber supply shop ( where the tradies get their parts ) and discuss the problem with them it is very possible that there are other makes that will fit in the holes to replace the delta unit

should not be necessary to get behind the shower stall as there should be a hole big enough to remove /replace the facet insert call a plumber in as it may be corroded in place and may require specialist tools for the job get a quote first

When you replaced the cartridge did you also replace the seats and springs in the back the seats could be rotted out

there is probably a shutoff on the rough-in valve in the wall. Sometimes the seal in that comes apart and blocks the water. Get new stem for valve. Unscrew the nut, replace stem, tighten nut. Clean inside valve before u put new one in.

there are several videos online. here is one. Delta Replacing Delta Tub Shower Cartridge

Take handle off (either set-screw from side or bottom of handle, or phillips screw under cap on end of handle), pull off sleeve that's behind handle, unscrew nut that holds cartridge (strap wrench works great) and pull cartridge out.

calcium build up "froze" the handle, would suggest immerse it in vinegar, or clr (do not know your local equvalent), or similar weak acid and leave for few minutes, run water through and then tap gently to try to dislodge it, repeat if necessary, and second time leave bit longer in acid. i do not understand "handle leaks" - usually taps (faucets) do that... handle leak only if split or otherways physically damaged - it usually requires replacement, as handles are (including hose) extremely cheap and start with about $10.00 at any hardware store - i would not bother with repair - just replace. another what can be wrong is seal gasket in handle mount. this cost few cents and is worth repairing... :-) hope this will help you - do not forget to vote...

Are your walls still open? I assume they are as you'd be unlikely to close them up without having had tested your water flow. Here is what I would do. 1.) use the orange plastic C shaped release tool to depress the white plastic ring on the shark bite fitting that you have on the delta side of the Delta-ShowerHead connection. 2.) Carefully and slowly turn water on and see if water is exiting the fixture where you expect it to. IF yes, water is coming out of the delta fixture then you know the flow problem is somewhere between the delta fixture and your shower head. IF no, water is not coming out the delta fixture then you need to re-access how you connected the supply lines to the delta fixture.

If you're confident google it. With all water issues may be better getting an expert in. What's the problem?

If you heard a hissing noise, you probably have a leak. In that case, it's probably still leaking right now, hiss or not. You'd better have someone come take a close look.

If it is a lever handle, there is an allen key set screw on the under side of the handle hub. IIf it is a knob handle. remove the plastic cap at the center of handle and tighten the phillips screw.

The supplies are probably hooked up backwards. Hot to cold side and cold to hot side.

Change seats and springs.

If you have the instruction manual there is a possibily the hot water can be adjusted. Look on the handle to see if the cover can be removed- the adjustment is inside. This is a safety feature to prevent burning yourself. Pay attention to the existing setting so you can advance the setting. First turn off the water!

Look in where u screw the head on there should be a flow washer type thing u can take out or unscrew let me know if it works or you can find it

use a wrenceh to revove the valve

Take the handle off and adjust the hot temperature stop. Its just a plastic piece that needs to be adjusted up more. It just fits in grooves like a gear. Its easy to do.

Adjusting the anti scald is pretty simple on this device. Attached is a photo of breakdown for this. Basically, unscrew the labeled part to access a very small black rubber gasket. Remove the black gasket to gain access to the anti scald part. You have have to use needle nose pliers to remove the black gasket but it does come off. Once you have this part off, you will see the two parts (with teeth like a wheel) that will adjust the hot water levels. Remove the part on top and turn the little "handle" clockwise towards "3'oclock" to make the water hotter. The part itself will not allow you to go past "3 oclock" for safety reasons.

Now there you need a good friend with some kind of handy man knowledge...send a pic if you can , and maybe this might help clarify the proper way to fix it...