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Diagnostics and Service Information
FAILURE
CODE
MEANING CORRECTION
-F0- Shorted OFF key Determine if problem is with Key Panel or control by disconnecting
ribbon cable and measuring fl at cable pins 13 to 14. Should be open.
Should be 100-150 ohms while pressing OFF key.
-F2- Over temperature inside
oven cavity as measured
by sensor over 600°F
unlatched or 915°F
latched.
- Welded relay contacts
- Cooling fan stalled or blocked
- Airfl ow to rear of unit
- High resistance in oven sensor leads/connectors
- (especially at sensor in rear)
-F3- Open oven sensor (over
2900 ohms)
- 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.
-F4- Shorted oven sensor
(under 950 ohms)
- Disconnect power.
- Disconnect sensor harness from control. Measure sensor resistance
(white leads) to be -1080 Ω at room temperature with 2 ohms per
degree change.
- Look for damaged harness terminals if not a bad sensor
-F5- A to D system fault Replace control
-F6- Range Lockout - Switch
issues
Check connections on lockout motor and CN6 of control.
-F7- Shorted matrix or START
key
Determine if problem is with Key Panel or control by disconnecting
ribbon cable and measuring fl at cable using pinout chart. Allow up to
1000 ohms when pressing key.
-F8- EEPROM data shift failure If repeated, replace control
-F9- Door Lock false while
above Runaway
Setpoint, Unlatched Door
Lock temperature. OR
Thermal switch device
setpoint exceeded.
“Unlock” Latch Changing status to “Lock” while cooking or “Lock”
Latch of Motor changing to “Un-Lock” while above run away set point
ERC Failure Codes
The oven may stop operating but not give an F code on the display immediately. F codes are stored in non
volatile eeprom memory until 2 of the same fault occur consecutively. After that, it will be displayed. They
can be recalled by pressing together: TIMER, CLOCK, 9. While displayed, pressing 8 and 6 together will clear
them. A fault must exist continuously for 5 minutes before an F code is recorded (F2, F8 are sooner).
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