
FORM SIG 085 Revised 6-01-18
Page 3 of 4
HANDLE TENSION ADJUSTMENT
SIGMA offers many handles of varying sizes and weights. Each 
design allows the installer to set the torque (tension) on each 
valve that uses the standard assembly B through F as shown. 
Part C is a loose brass O-ring that is compressed inside Part E by 
tightening or loosening Part D. 
REVERSING CARTRIDGE FOR BACK-TO-BACK INSTALLATIONS ONLY
allow normal operation. FIG. 5
1. Expose top of valve.
2. Loosen and remove hex cap above cartridge with wrench.
3. Remove cartridge from valve cavity.
4. Look into cavity tosee upper and lower locating holes for cartridge pin on 
 cutaway by discharge opening).
7. Secure cartridge by tightly re-assembling the cap using wrench.
8. Re-assemble trim.
FIG. 5
Malfunction Cause Remedy
Shower control opening 
through hot.
Hot and cold water supplies have been 
connected in reverse.
Rotate cartridge as described in 
”Back to Back Installation”
drips after shutting off 
valve.
the shower head (this is normal)
Failure to close cartridge before 
setting temperature ring causing 
a partially opened cartridge.
Seal on the inlet of the cartridge 
is faulty.
Allow approx. 3-5 min. to drain column.*
Reset the temperature ring as described on Figure 3.
Check the seal for cuts or damage and replace if necessary.
Adjustable handle position stop incor-
rectly set.
- Reset handle position.
- Check hot water source temperature setting.
cold water.
Either the hot or the cold side is not fully 
pressurized.
Debris caught inside the inlets of the 
cartridge.
Be sure service stops are both wide open and system 
is fully pressurized.
Install stem extension kit.
Trim parts do not 
operate valve correctly.
Stem and all thread not installed to 
proper lengths. or call customer service.
Trim plate will not install 
wall.
Re-install valve to proper depth or call dealer for 
custom trim plate.
Maintenance
The cartridge is designed for minimum maintenance in normal domestic use. If a malfunction occurs then this will 
probably necessitate a complete replacement. The cartridge contains no internally serviceable parts! Contact your installer or dealer.
To Clean trim
and should never be used for cleaning decorative faucets.
Trouble Shooting - Pressure Balancing Valve