Plumbing Questions? Ask a Plumber and Get Answers ASAP.
Hi my name is ***** ***** I have been in the plumbing field for 20 years. I will be glad to help you today. I am very sorry to say that the valve body would have to be removed and installed correctly. Hopefully it can be done by cutting the wall out behind it and not by removing any tile.
Even cutting a hole in the wall behind it would be much easier to patch than removing tile. It certainly is something that could be left as it is if the hot and cold are connected to the correct ports. If that is the case then not only did the plumber install it upside down but he also connected to the incorrect ports. When you turn it on it should be cold and then get hotter as you move the handle. It is possible to cut out tile only what will be covered by the face plate and that may get enough access to remove the valve body that way and replace it correctly. I have done that in the past and it is not easy but it can be done.
Yes that is correct. Once the hot water reaches the valve that is how it should work. The plumber will not come back and fix it?
That is quite terrible. I do not think that those cartridges can be turned around. I would have to review the specs. Do you have the model number of the valve body?
If it is the one that I am thinking of I do believe you can get a reversing cartridge but it does not solve the problem of being upside down. Those cartridges are about $200 each too.
It may but only part of the problem and the cost may be near the cost of complete repair. Not sure how many units are installed this way. If the water lines are accessible they could be switch too. Then no need for the cartridges.