26
Problem
Possible Cause
Solution
Insufficient water
- Supply pressure inadequate
- Thermostatic cartridge filter dirty
- Showerhead screen washer or filter
gasket dirty
- Check water pressure (If a pump
has been installed check to see if
the pump is working).
- Clean filters
- Clean screen washer or filter
gasket
Crossflow: hot water being forced
into cold water supply, or vice
versa, when mixer is closed
- Check valves dirty or worn
- Clean check valves,replace if
necessary
Output temperature does not
correspond with temperature set
- Handle not justified
- Justify the handle
Output temperature is erratic
- Temperature regulator dirty or
calcified
- Clean temperature thermostatic
cartridge filters
- Replace thermostatic cartridge
Output water is all hot or all cold
-- doesn't mix (new installation)
- Rough valve is cross connected --
hot on right and cold on left
- Remove function block, turn it 180
and reinstall.
Safety stop override button not
operating
- Spring defective
- Button dirty
- Clean spring and/or button,
replace if necessary
Troubleshooting
Maintenance
• Inspect the check valves at least once per year.
Replace the check valves if necessary.
• Should the volume of water decrease over time,
inspect and clean the filters on the thermostatic
cartridge. After reassembly, set the high
temperature limit stop and justify the handle.
• To prolong the life of the themostatic cartridge,
regularly run it through its full range of
temperatures.
