Sharp AX-GX2T(R) Service Manual page 25

6. CO5 Engine high temperature failure
Is the connectors between the engine thermistor, board and engine mounting section
disconnected or short circuited?
Measure the engine thermistor resistance using a tester with the thermistor connector
The oven thermistor resistance is within its appropriate range.
Replace the control unit and the engine unit
I Before starting the P.W.B. unit replacement, make sure to refer to "Before replacing the Printed Wiring Board" in page 2-2.
7. C12 Engine thermistor failure
Is the connectors between the engine thermistor, board and engine mounting section
disconnected or short circuited?
Measure the engine thermistor resistance using a tester with the thermistor
connector pulled out of the board.
The engine thermistor resistance is within its appropriate range.
About 200 kW at
About 10 kW at
About 1 kW at
Are there disconnection, breakage and short circuit in the engine heater
connections (the engine terminals and board)?
Is there a voltage of 110V AC between the engine heater terminals?
Is the engine heater normal to meet the following requirements?
Insulation resistance: One (1) M or more at 500 VDC
Dielectric strength: 1000 V for one (1) minute
Leakage current: 0.3 mA or less
Resistance (in cold condition): 10.45 to 11.26
Replace the engine unit.
Note 1. If the display unit is replaced, carry out "
Note 2. If the engine unit is replaced, carry out "Treatment after engine unit replacement".
I Before starting the P.W.B. unit replacement, make sure to refer to "Before replacing the Printed Wiring Board" in page 2-2.
NO
pulled out of the board.
YES
Note 2. If the engine unit is replaced, carry out
Note 2
NO
YES
NO
YES
NO
Note 2
YES
NO
"Treatment after engine unit replacement".
YES Connect/repair the connector(s) or replace the
NO
Replace the engine thermistor or the harness.
YES
Connect/repair the terminal(s) or replace the harness.
NO
The latch switch is in the door
open position.
Is there a voltage of 230 - 240V AC at
each terminal of the E thermostat?
YES
Replace the control board, the display board or the harness.
(citrate washing)".
6 – 8
Connect/repair the connector(s) or replace the
thermistor/harness.
Replace the engine thermistor or the harness.
thermistor/harness.
YES
Adjust the latch.
NO
NO
Replace the Engine
thermostat.
YES
Note 1