Installation
S19-2010 Series
Bradley
•
215-1873 Rev. B: ECO 20-09-002
1/20/2020
7
Troubleshooting Thermostatic Mixing Valves
Before troubleshooting the valve or disassembling the components, check for the following conditions.
•
Be sure to properly connect the hot and cold inlet pipes. Verify there are no cross-connections or
leaking valves.
•
Verify the hot water inlet temperature is at least 120°F.
•
Be sure to close the appropriate shut-off valves prior to disassembling the valve. Reopen the valves
after inspection and any repairs are complete.
Problem
Cause
Solution
External leaks in the
system
Damaged O-rings on the cartridge.
Replace cartridge with Cartridge Kit (S65-482).
Temperature
fluctuation or improper
water temperature
Hot water supply is not 10° above the
desired set point.
Increase the hot water supply temperature.
Damaged cartridge.
Replace cartridge with Cartridge Kit (S65-482).
Valve temperature is not properly set.
See “Faucet Temperature Adjustment” on page 5 to
properly set the temperature.
Limited water flow
Dirt and debris built up around the cartridge
strainer.
Clean Cartridge:
1. Verify both the hot and cold supplies are connected to
the Navigator
®
mixing valve and they have water flow.
2. Turn off both the hot and cold water supplies.
3. Remove the cover and hex nut.
4. Remove the cartridge and clean the strainer. If desired,
use ONLY silicone grease to lubricate the cartridge
O-rings.
Faucet Troubleshooting
