Sharp AX-1100 Service Manual page 28

AX1100(R)
2. How to check performance of thermistor (Engine)
Set the water tank, which has been filled with water to the MAX mark, to the set and power ON.
(Confirm that there is no water remaining in the oven cavity.)
Set the test mode to 10. (See How to operate test mode on page 11-1)
The pump motor will operate for 30 seconds.
And then Microwave heating (for 1 minute) starts automatically.
Steam High operation (for 30 minutes) starts automatically.
After 2minutes, "CHECK" appears in the display automatically.
Is thermistor (Engine) failure (00 00 or 00 00 ) indicated?
Normal termination (Indication: 11 11)
3. How to check thermistor (Grill) performance
Power ON the main body.(Open and close the door.)
Set the test mode to 03.
Press the START key.
Does a measured value for the thermistor (grill) change as oven heating proceeds?
Is the measured value within ±10 bits with respect to the
standard value after about eight (8) minutes?
Press the STOP key to finish the operation. (This action is required when everything is OK.)
4. EE01 thermistor (Grill) failure
Is the connector between the thermistor (grill) and wire harness either
Measure the thermistor (grill) resistance using a tester with the thermistor
connecting connector pulled out of the wire harness.
The thermistor (grill) resistance is within its appropriate range.
✩ Before starting the P.W.B. unit replacement, make sure to refer to "Before replacing the Printed Wiring Board" in page 2-3.
Press the START key.
NO
(See How to operate test mode on page 11-1)
YES
YES
disconnected or shorted?
NO
YES
Replace the control unit.
YES
EE12: Proceed to checking the thermistor (Engine) for failure.
Remove the water tank and press the START key.
The test mode 6 will be carried out and remained water in the engine
unit assembly will be evaporated
NO
NO
EE01: Proceed to checking the thermistor (grill) for failure.
YES
Connect or repair the connector.
NO
Replace the thermistor (grill).
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