LEONARD TM-15, TM-20 THERMOSTATIC VALVES

Leonard Parts Troubleshooting Chart
PACKINGS & GASKETS 1. Leak at pointer rod.
2. Leak between valve cover and base
PARTS REQUIRED:
REPAIR KIT 1/M20
(PACKINGS & GASKETS)
PORT SLEEVE ASSEMBLY 3. Valve delivers either all hot or all cold water, or will not mix consistently. REPAIR KIT R/M20 (REBUILDING KIT)
OR
M20-1-8B BRIDGE ASSEMBLY
THERMOSTAT GROUP 4. After cleaning or replacing port sleeve assembly, valve will not hold temperature. REPAIRKIT R/M20(REBUILDING KIT)
OR
M20-G2 THERMOSTAT GROUP
CHECKSTOPS 5. Hot water bypass into cold line.
6. Supplies cannot be shut off completely.
7. Leak at checkstop bonnet.
REPAIR
KIT 4/M20

(CHECKSTOP KIT)

Refer to the Operational and Maintenance guide for full Troubleshooting Instructions.

Items in LEONARD TM-15, TM-20 THERMOSTATIC VALVES