Thermostat -- Inspection |
1. INSPECT THERMOSTAT |
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- HINT:
- The valve opening temperature is inscribed on the thermostat.
Immerse the thermostat in water and then gradually heat the water.
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Check the valve opening temperature of the thermostat.
- Standard valve opening temperature:
- 80 to 84°C (176 to 183°F)
Check the valve lift.
- Standard valve lift:
- 8.5 mm (0.335 in.) or more at 95°C (203°F)
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Check that the valve is fully closed when the thermostat temperature is below 77°C (171°F).
If not fully closed, replace the thermostat.