36 TROUBLESHOOTING
Fault Code and Description When Active Refer to...
Warmup Idle Cooking Test Mode
F1: Blower Running Status Bad
Page 37
F2: Cook Temperature Low
Page 38
F3: Magnetron Current Low
Page 39
F4: Door Monitor Defective
Page 40
F5: Magnetron Over Temperature
Page 40
F6: EC Temperature High
Page 41
F7: RTD Open
Page 41
F8: Heat Low
Page 42
F9: Cook Cavity Temperature High
Page 42
Fault codes are listed in order of hierarchy. For example, if during cooking the oven experiences both an F1 and
F2 fault, it will report only the F1 fault because the software will halt all actions upon discovering the F1 fault.
Fault codes F1 - F5 and F7 will terminate a cook cycle upon discovery.
F7: RTD Open
This fault is displayed when the control detects that
the RTD is “open” for more than two continuous
minutes. The display will show a reading of
“999
º
F/C,” indicating the RTD is open.
The fault is cleared when the control detects ohms in
a proper range. See Figure 37, page 33 for an
ohm/temperature chart.
F8: Heat Low
This fault displays during
WARMING UP or TEST MODE
if the cook cavity temperature fails to rise at least
14
º
F (7
º
C) within a given 30 seconds.
F9: Cook Cavity Temperature High
This fault will signal that the catalyst has “flashed”
due to excessive grease. The fault occurs when the
RTD senses +650°F (343°C) for more than 40
seconds but less than 2 minutes. The fault will only
appear in the fault log and will not terminate a cook
cycle upon discovery.
Fault Code Table
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