PROCEDURE
INSPECT THERMOSTAT
Tech Tips
The valve opening temperature is inscribed on the thermostat.
Immerse the thermostat in water, and then gradually heat the water.
Check the valve opening temperature of the thermostat.
| Standard valve opening temperature |
|---|
| 80 to 84°C (176 to 183°F) |
If the valve opening temperature is not as specified, replace the thermostat.
| *a | Valve Lift |
Check the valve lift.
| Standard valve lift |
|---|
| 8.0 to 10 mm (0.315 to 0.394 in.) at 95°C (203°F) |
If the valve lift is not as specified, replace the thermostat.
Check that the valve is fully closed when the thermostat temperature is below 77°C (171°F).
If the valve is not fully closed, replace the thermostat.