THERMOSTAT
Tech Tips
The thermostat is numbered with the valve opening temperature.
Immerse the thermostat in water and gradually heat the water.
Check the valve opening temperature.
| Valve opening temperature |
|---|
| 86 -90°C(186 -194°F) |
If the valve opening temperature is not as specified, replace the thermostat.
| *a | Valve Lift |
Check valve lift.
| Valve lift |
|---|
| 9 mm (0.31 in.) or more at 100°C (212°F) |
If the valve lift is not as specified, replace the thermostat.
Check that the valve is fully closed when the thermostat is at low temperatures (below 40°C (104°F)).
If not closed, replace the thermostat.