chickenbrown
New Member
I'm truly stumped on this and I hope someone can help. I installed a super high end Italian made ( but sold in USA for 30 years) shower rough yesterday and after three hours of head scratching gave up!
The shower rough is a Fantini 19003903AU. Which is a 3/4" thermo mixer with 3 vol controls. It has two integral stops built in. After install I tested and found that I very little cold water into the mixer. I made sure to solder all the joins off the body and then make them up cold later so not to expose the cartridge to heat. So with both integral stops fully open I get pretty hot water out of the test vol control. If I shut the hot side I get a trickle of cold. If I open th hot up and shut the cold I get full pressure water the same temp as before ( hot but not scolding). So then I think maybe it's the integral stop on the cold side. I removed it completely. Same thing just a trickle of cold. Then I removed the cartridge itself and tested it again. Full pressure cold through the cartridge opening. So now I figure it's got to be a bad cartridge and luckily I'm installing four of the exact same body. I take a cartridge from one of these and swap it out. Same thing!!!.
I made very sure not to damage the cartridge or turn it around during the swap out so I'm sure it's in right. The house is well water but the pressure is pretty good. I don't have the tools to do a pressure test but it's for sure over 20 lbs because I cannot hold it back with my hand on an open 1/2" line.
Help!!
The shower rough is a Fantini 19003903AU. Which is a 3/4" thermo mixer with 3 vol controls. It has two integral stops built in. After install I tested and found that I very little cold water into the mixer. I made sure to solder all the joins off the body and then make them up cold later so not to expose the cartridge to heat. So with both integral stops fully open I get pretty hot water out of the test vol control. If I shut the hot side I get a trickle of cold. If I open th hot up and shut the cold I get full pressure water the same temp as before ( hot but not scolding). So then I think maybe it's the integral stop on the cold side. I removed it completely. Same thing just a trickle of cold. Then I removed the cartridge itself and tested it again. Full pressure cold through the cartridge opening. So now I figure it's got to be a bad cartridge and luckily I'm installing four of the exact same body. I take a cartridge from one of these and swap it out. Same thing!!!.
I made very sure not to damage the cartridge or turn it around during the swap out so I'm sure it's in right. The house is well water but the pressure is pretty good. I don't have the tools to do a pressure test but it's for sure over 20 lbs because I cannot hold it back with my hand on an open 1/2" line.
Help!!