INSPECTION
PROCEDURE
1. INSPECT WATER INLET WITH THERMOSTAT SUB-ASSEMBLY
(a) Check the valve opening.
HINT:
The valve opening temperature is inscribed on the water inlet with thermostat sub-assembly.
(1) Add 15 cc (0.9 cu. in.) of water to the water inlet with thermostat sub-assembly from the inlet pipe side. |
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(2) Confirm that water does not flow out from the valve side of the water inlet with thermostat sub-assembly.
If water flows out from the valve side of the water inlet with thermostat sub-assembly, replace the water inlet with thermostat sub-assembly with a new one.
(3) Immerse the water inlet with thermostat sub-assembly in water that is between 92°C (198°F) and 96°C (205°F) for 5 minutes or more.
NOTICE:
*a | Connector |
*b | Inlet Pipe |
![]() | Temperature Sensor |
(4) Leave the water inlet with thermostat sub-assembly at ambient temperature for 5 minutes so that the valve closes. NOTICE: Make sure that the end of the inlet pipe of the water inlet with thermostat sub-assembly is not facing downward. |
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(5) Check that the water that was added to the water inlet with thermostat sub-assembly has completely flowed out.
If the water that was added to the water inlet with thermostat sub-assembly has not completely flowed out, replace the thermostat sub-assembly with a new one.
(b) Check the resistance of the temperature sensor.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
1 - 2 | Always | 10.6 to 14.2 Ω |
If the result is not as specified, replace the water inlet with thermostat sub-assembly.
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