房客说这几天刚变成这样，即使把热水开到最大，还是几分钟后就变成温水。但卫生间洗脸盆的热水一直是热的，感觉不像是热水炉的问题。而且热水炉是三年新的，不应该这么快就坏了。
第一次遇到这种情况，想不出原因，大家帮看看，谢谢。
Special tool needed. Buying it with removal tool package.
the cold water shutoff may not be opened wide enough( I know this sounds nonsense, but sometimes this works that you turn up the cold water to get hot water...)
浴缸附近不记得有阀门，这有张上次开墙换淋浴 Symmons tub&shower valve时的图
房客说这几天刚变成这样，即使把热水开到最大，还是几分钟后就变成温水。但卫生间洗脸盆的热水一直是热的，感觉不像是热水炉的问题。而且热水炉是三年新的，不应该这么快就坏了。
第一次遇到这种情况，想不出原因，大家帮看看，谢谢。
Special tool needed. Buying it with removal tool package.
https://www.amazon.com/Replacement-Cartridge-Retainer-Bathtub-Plastics/dp/B094HG8J2H/ref=sr_1_3_sspa?crid=2UG8ERRKWVI62&dib=eyJ2IjoiMSJ9.f2NAI-plafwUMsYkq0CHMxLjLexRIB9aulffMBxZmXIzFqQiyCIFyulmpL31pdCxe8nSKjsBUXRUIFwueGbNJwBissOgzL-d8OIHSnAs3pup5zgtKyEHhldL6beFlqX4eqLWZ4th4kKVYrVw9-a7HZordvl21Nh0E2Wn9OuSan39HR_3J2kAy3EWTC0N6WHHPqfORGvfQaGlKZYS1dXxY2MXYcmVcODFtN7j0ZZ164QeHQq4cfOuyAuVHUysj0AQeP6NL2Kto35jOA7icm62mFkKamlRFt1Pbj4WFS72RG4.-Lu9yEiZiQEHFyALFPFPUc5qsSlQchvmcSls_xuZDmE&dib_tag=se&keywords=shower+cartridge+replacement&qid=1731632049&sprefix=shower+car%2Caps%2C149&sr=8-3-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&psc=1
https://www.amazon.com/RP46074-Compatible-Replacement-MultiChoice-RP22734/dp/B0D9LMWMSH/ref=sr_1_10?crid=MEYBDOK4WLPS&dib=eyJ2IjoiMSJ9.f2NAI-plafwUMsYkq0CHMxLjLexRIB9aulffMBxZmXIzFqQiyCIFyulmpL31pdCxe8nSKjsBUXRUIFwueGbNJwBissOgzL-d8OIHSnAs3pvT-_gsRgJN80uOynvH4De-9NzTZCnfc3Isgmp39yEhnJordvl21Nh0E2Wn9OuSan39HR_3J2kAy3EWTC0N6WHHPqfORGvfQaGlKZYS1dXxY2MXYcmVcODFtN7j0ZZ164QeHQq4cfOuyAuVHUysj0AQeP6NL2Kto35jOA7icm62mFkKamlRFt1Pbj4WFS72RG4.B8bSxty9GHwnXdyu5vPRZYYSxVuIpCfGXutPaRQUJvo&dib_tag=se&keywords=shower+cartridge+replacement&qid=1731633169&sprefix=shower+car%2Caps%2C159&sr=8-10
the cold water shutoff may not be opened wide enough( I know this sounds nonsense, but sometimes this works that you turn up the cold water to get hot water...)
浴缸附近不记得有阀门，这有张上次开墙换淋浴 Symmons tub&shower valve时的图