Hi,
We have recently encountered a problem with our shower. A high pitched squeal then the water flow completely stops. We then return the handle to the "off" position and turn the water back on. Flow will return along with the squeal. As we gradually increase water flow the squeal continues until the water flow again stops.
We have a Moen 3301 thermostatic tub/shower valve in a stand-up shower (i.e. the valve's tub outlet is capped).
I have removed the two check valves and screens (for hot and cold water) and verified the check valves are functioning and the screens are clean. Whether the temperature setting on the valve is set to full cold, full hot, or at a balanced setting water will flow, squeal and stop.
I am hoping I can resolve this without having to replace the whole valve as the previous house owner completely tiled it in so there's no access unless we cut in through the wall to gain full access to the valve.
We have recently encountered a problem with our shower. A high pitched squeal then the water flow completely stops. We then return the handle to the "off" position and turn the water back on. Flow will return along with the squeal. As we gradually increase water flow the squeal continues until the water flow again stops.
We have a Moen 3301 thermostatic tub/shower valve in a stand-up shower (i.e. the valve's tub outlet is capped).
I have removed the two check valves and screens (for hot and cold water) and verified the check valves are functioning and the screens are clean. Whether the temperature setting on the valve is set to full cold, full hot, or at a balanced setting water will flow, squeal and stop.
I am hoping I can resolve this without having to replace the whole valve as the previous house owner completely tiled it in so there's no access unless we cut in through the wall to gain full access to the valve.