Troubleshooting - Bradley Vernatherm S59-4008 Guia De Inicio Rapido

Installation
Maintenance and Troubleshooting
NOTE: Before attempting to troubleshoot the valve or disassemble the components, check for the following
conditions:
• If stop/check valves are used, make sure that they are fully open
• Make sure that the hot and cold inlet pipes are connected properly, and that there are no cross-connections
or leaking stop/check valves
• Check the hot water heater output to make sure that it is at least 20° F above the set temperature .
• Be sure to close the appropriate shut-off valves prior to disassembly and reopen the valves after inspection
and repair is complete .
Problem
Limited water flow
External leaks in the system
Improper water temperature
or temperature fluctuation
Bradley • 215-1297 Rev. H; ECN 14-09-017
Cause
Dirt and debris have built up in the valve .
O-rings have been damaged .
Thermostat is slowly failing or not working
at all .
Valve temperature is not properly set .
Solution
Check the valve's piston for free and smooth movement, follow
the procedures outlined below:
1 . Remove the valve's cap and thermostat .
2 . Push down on the piston with your finger (the piston
should move freely) . If the movement is not as it should
be, the piston needs to be cleaned . Follow the method
outlined below for cleaning the piston and valve body:
• Remove the thermostat .
• Lift the piston out with a needle-nose pliers and
remove the spring .
• Any cleaner suitable for brass and stainless steel
may be used (if cleaning with suitable cleaner is not
sufficient to remove debris, a 400- grit sandpaper
may be used to polish and hone the piston and valve
body) .
• Snap spring into piston (will detent) and reassemble
into the valve body .
• Retest the piston .
3 . If, after a thorough cleaning, the piston does not move
freely, the piston must be replaced . Contact your Bradley
representative and ask for Repair Kit S65-418
Replace O-rings where necessary . Contact your Bradley
representative and ask for Repair Kit S65-418
Check the thermostat for proper operation .
1 . At room temperature (80° F or less) remove cap and
thermostat .
2 . Place thermostat into container with 115° F water . The
pushrod should pop out of the thermostat approximately
1/10" .
3 . If thermostat pushrod does not pop out, the thermostat
must be replaced . Contact your Bradley representative
and ask for Repair Kit S65-418 .
Adjust the temperature per Step 6 of Installation .
3/24/2014
Model S59-4008
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