Bath Mixer Valve Problems. Best seller moen brass rough in posi temp pressure balancing cycling tub and shower valve 1 2 in. When the shower valve begins leaking or fails to correctly balance the hot and cold water fixing the problem is usually a simple matter of replacing the insert cartridge. Remove the valve and clear the clog.
Switch to a thermostatic mixing valve. Common problems with diverter valves as tub diverter valves age they become worn.
The problem could just be an old faulty shower lever in which case you should try replacing it.
When the shower valve begins leaking or fails to correctly balance the hot and cold water fixing the problem is usually a simple matter of replacing the insert cartridge. The usual suspects for this problem are a blocked shower head kinked or damaged shower hose or blocked inlet filters in the shower itself. Switch to a thermostatic mixing valve. If your shower is suddenly fluctuating in temperature for no reason that means that you probably have a problem with the temperature sensor the thermostatic cartridge in your thermostatic mixer valve.
