Look at that! I've never heard of such a thing. Now I wonder how a failure would present itself.
https://gt86stuff.onrender.com/t3Por...00RTE03TX.html
Opens at such a low temperature!
https://gt86stuff.onrender.com/t3Por...0335X02CX.html
1. INSPECT THERMOSTAT
(a) Immerse the thermostat in water and then gradually heat the water.
HINT:
Hold the thermostat with a wire or the like, so that the thermostat does not come into contact with the bottom of the container.
(b) Check the valve opening temperature of the thermostat.
Valve opening temperature:
48 to 52°C (118 to 126°F)
HINT:
If the valve opening temperature is not as specified, replace the thermostat.
(c) Check the valve lift.
Text in Illustration
*a
Valve Lift
Valve lift:
6.0 mm (0.236 in.) or more at 63°C (145°F)
HINT:
If the valve lift is not as specified, replace the thermostat.
(d) Check that the valve is fully closed when the water inlet with thermostat is at low temperatures (below 45°C (113°F)).
HINT:
If it is not fully closed, replace the thermostat.