Inspection

1. INSPECT WATER INLET WITH THERMOSTAT SUB-ASSEMBLY

HINT:

The valve opening temperature is inscribed on the water inlet with thermostat sub-assembly.

(a) Immerse the thermostat in the water, then heat the water gradually.

CAUTION:

• Do not your hands into the water that has been heated for the inspection.
• Touching the heated water could result in burns.

(b) Check the valve opening temperature of the water inlet with thermostat sub-assembly.

Standard valve opening temperature:

85 to 89 °C

NOTICE:

When checking the water inlet with thermostat sub-assembly in water, keep the terminals dry. After the check, wipe the water inlet with thermostat sub-assembly dry.

If the valve opening temperature is not as specified, replace the water inlet with thermostat sub-assembly.

(c) Check the valve lift. Text in Illustration *a Valve Lift Standard valve lift: 8.0 mm (0.315 in.) or more at 100 °C If the valve lift is not as specified, replace the water inlet with thermostat sub-assembly.

(d) Check that the valve is fully closed when the water inlet with thermostat sub-assembly is at a low temperature (below 40 °C).

If the valve is not fully closed, replace the water inlet with thermostat sub-assembly.

(e) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

If the result is not as specified, replace the water inlet with thermostat sub-assembly.