Diagnostic And Service Information; Failure Codes - GE Profile J2S968 SERIES Technical Service Manual

Diagnostics and Service Information

Failure Codes

The oven may stop operating but not give an F code on the display immediately. F codes are stored in
nonvolatile EEPROM memory until the same fault occurs twice consecutively. After that, the F code will
be displayed. F codes can be recalled by pressing together TIMER, CLOCK, MIN DOWN or 9. While F
codes are displayed, pressing MIN UP or 8 and HR DOWN or 6 together will clear them. A fault must
exist continuously for 5 minutes before an F code is recorded (F2 and F8 are sooner).
FAILURE
CODE
Shorted OFF key
-F0-
-F2- Over temperature
1. Inside oven cavity as
2. Cooling fan stalls while
Open oven sensor (under
-F3-
950 ohms)
Shorted oven sensor
-F4-
(over 2900 ohms)
Shorted matrix or START
-F7-
key
-F8- EEPROM data shift failure
-F9- Cooling fan stalls while
above 650°F; open
thermal switch in yellow
leads
-FF- Loss of latch motor safety
circuit
MEANING
Determine if problem is with key panel or control by
disconnecting ribbon cable and measuring flat cable
pins 13 to 14. Should be open. Should be 100–150
ohms while pressing OFF key.
measured by sensor
over 650°F unlatched
or 915°F latched or
oven above 650°F—
open thermal switch in
yellow leads
CORRECTION
• Welded relay contacts
• Cooling fan stalled or blocked
• Airflow to rear of unit
• High resistance in oven sensor leads/connectors
(especially at sensor in rear)
• Disconnect power. Disconnect sensor harness from
control. Measure sensor resistance (white leads) to
be ~1080 ohms at room temperature with 2 ohms
per degree change.
• Look for damaged harness terminals if not a bad
sensor.
• Disconnect power. Disconnect sensor harness from
control. Measure sensor resistance (white leads) to
be ~1080 ohms at room temperature with 2 ohms
per degree change.
• Separate sensor from harness to determine fault.
Determine if problem is with key panel or control by
disconnecting ribbon cable and measuring flat cable
using pinout chart. Allow up to 1000 ohms when
pressing a key.
If repeated, replace control.
Cooling fan or airflow to control area.
Replace control.
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