Temperature Sensor; Test Procedure - Amana ARGS7650 Service Manual

Testing Procedures
!
WARNING

Temperature Sensor

Sensor resistance may be checked by removing the
sensor interconnect plug from the KRC P2 connector
and inserting ohmmeter leads into the harness
connector plug (P2–4 and P2–5). Refer to the
appropriate wiring diagram/schematic for exact pin
placement and color coding. A resistance reading of
approximately 1075 ohms should be indicated at room
temperature (75° F). If a higher resistance is indicated,
disconnect wire harness from sensor and recheck
sensor resistance to verify the failure is in sensor and
not in wire harness or connections. The following list
gives corresponding resistance for different oven
temperatures.
Temperature
75° F
350° F
550° F
880° F
Replace sensor if it does not meet these specifications.
Approximate
Sensor Resistance
1075 ohms
1625 ohms
2025 ohms
2675 ohms
To avoid risk of electric shock, personal injury or death,
disconnect power before servicing, unless testing requires it.

Test Procedure

Performance of this clock is very simple. To verify
proper operation, follow the procedures below:
KRC Control not Operating
1. Verify 120 VAC is present at P3 (L1) and P4 (NEU)
terminals of the control.
2. If no voltage is present, verify wire connection are
properly in place, and check wire continuity.
3. Replace control if voltage is present and no display is
present.
NOTE: Press clock pad to verify display is not turned
off.
Clean Operation of Control
1. If no voltage is present, verify wire connections are
properly in place, and check wire continuity.
2. If voltage is present and clean function does not
operate.Verify latch switch is operating properly.
3. If latch switch is operating properly, verify relay
voltage at terminals, to confirm relay is operating
properly.
4. If relay is operating, verify temperature sensor is
operating properly.
5. If latch switch and sensor is operating properly, but
clean cycle does not operate, replace control.
C–7 RS2310002 Rev. 1