RCA
RCA Microwaves Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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E1
Microwave will not start; display shows E1 when START is pressed.
Door Interlock Switch Failure
E2
Microwave stops heating shortly after start; display shows E2 and beeps.
Magnetron Overheat or Magnetron Failure
E3
Microwave runs but does not heat; display shows E3 after a few seconds.
High Voltage System Failure
E4
Microwave display shows E4 and unit will not start any cooking program.
Humidity / Steam Sensor Failure
E5
Microwave beeps and shows E5; some auto-cook or sensor functions do not work.
Temperature Sensor / Thermistor Error
E6
Microwave display shows E6 and keypad does not respond or responds erratically.
Keypad / Membrane Switch Failure
E7
Microwave shows E7 and will not start; sometimes accompanied by a loud humming noise before shutdown.
Inverter Board or Power Supply Failure (on inverter-equipped RCA models)
E8
Microwave shows E8 and fan runs continuously or not at all; cooking may be disabled.
Cooling Fan Motor or Fan Feedback Error
E9
Microwave shows E9 and interior light, turntable, or fan may not operate correctly.
Low Voltage or Relay Board Error
F1
Microwave displays F1 and may beep continuously; unit may not start.
Control Board Internal Error
F2
Microwave shows F2 and may stop mid-cycle.
Overheat or Cavity Temperature Error
F3
Microwave displays F3 and sensor cooking functions are disabled.
Sensor Circuit Short or Open
F4
Microwave shows F4 and will not start; sometimes occurs after a loud pop.
Door Latch / Interlock Circuit Error
F5
Microwave displays F5 and may shut down during operation.
Relay or Power Control Error
F6
Microwave shows F6 and may not respond to keypad input.
Communication Error Between Display and Main Board
F7
Microwave intermittently shows F7 and may shut off mid-cycle.
Overcurrent / Line Voltage Error
H97
Microwave stops heating and displays H97; unit may still power on.
Inverter / Magnetron Communication Error (on some RCA inverter models)
H98
Microwave shows H98 and does not heat; sometimes accompanied by a brief humming sound.
High Voltage / Inverter Protection Error
H99
Microwave intermittently shuts down with H99 error; may reset after cooling.
Inverter Overheat / Overcurrent Protection
PF
Microwave display shows PF; clock resets after power interruption.
Power Failure / Line Voltage Interruption
SE
Microwave beeps repeatedly and displays SE; keys may activate by themselves or not respond.
Stuck Key / Shorted Keypad Error
Symptom
Microwave cavity light and fan run, but turntable and magnetron do not start (no heating).
Relay or Control Output Failure
Symptom
Microwave clock or display is very dim or segments are missing.
Display Module Degradation
Symptom
Microwave display works but dims or flickers when cooking.
Line Voltage Drop or Overload
Symptom
Microwave door will not open or is difficult to open after cooking.
Door Latch Mechanism Binding
Symptom
Microwave door will not stay closed or pops open during operation.
Door Latch or Catch Failure
Symptom
Microwave exhaust fan on over-the-range (OTR) model does not run or runs only on one speed.
Exhaust Fan Motor or Control Failure
Symptom
Microwave has a burning or electrical smell during or after use.
Overheating Component or Cavity Contamination
Symptom
Microwave has power but will not start when START is pressed; no error code.
Door Interlock or Control Input Failure
Symptom
Microwave interior light does not come on, but unit heats and runs normally.
Cavity Lamp Failure
Symptom
Microwave keypad buttons are unresponsive or require very hard presses.
Worn Membrane Keypad
Symptom
Microwave makes loud buzzing, humming, or grinding noises during operation.
Mechanical or High-Voltage Noise
Symptom
Microwave runs but does not heat; no error code displayed.
Magnetron or High-Voltage Circuit Failure
Symptom
Microwave runs for a few seconds then shuts off with no code; may restart if door is opened and closed.
Intermittent Door Switch or Overheat Protection
Symptom
Microwave runs with door open or starts when door is closed without pressing START.
Door Interlock Safety Failure
Symptom
Microwave sparks or arcs inside the cavity during cooking.
Cavity Arcing / Waveguide Contamination
Symptom
Microwave trips the household circuit breaker or blows a fuse when starting.
Short Circuit or Overcurrent Condition
Symptom
Microwave turntable does not rotate, but heating and other functions work.
Turntable Motor or Drive Failure
Symptom
Microwave will not start at all; display is blank and no lights or sounds.
No Power / Line Fuse Open
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E1 |
Microwave will not start; display shows E1 when START is pressed.
|
Door Interlock Switch Failure | View Details |
| E2 |
Microwave stops heating shortly after start; display shows E2 and beeps.
|
Magnetron Overheat or Magnetron Failure | View Details |
| E3 |
Microwave runs but does not heat; display shows E3 after a few seconds.
|
High Voltage System Failure | View Details |
| E4 |
Microwave display shows E4 and unit will not start any cooking program.
|
Humidity / Steam Sensor Failure | View Details |
| E5 |
Microwave beeps and shows E5; some auto-cook or sensor functions do not work.
|
Temperature Sensor / Thermistor Error | View Details |
| E6 |
Microwave display shows E6 and keypad does not respond or responds erratically.
|
Keypad / Membrane Switch Failure | View Details |
| E7 |
Microwave shows E7 and will not start; sometimes accompanied by a loud humming noise before shutdown.
|
Inverter Board or Power Supply Failure (on inverter-equipped RCA models) | View Details |
| E8 |
Microwave shows E8 and fan runs continuously or not at all; cooking may be disabled.
|
Cooling Fan Motor or Fan Feedback Error | View Details |
| E9 |
Microwave shows E9 and interior light, turntable, or fan may not operate correctly.
|
Low Voltage or Relay Board Error | View Details |
| F1 |
Microwave displays F1 and may beep continuously; unit may not start.
|
Control Board Internal Error | View Details |
| F2 |
Microwave shows F2 and may stop mid-cycle.
|
Overheat or Cavity Temperature Error | View Details |
| F3 |
Microwave displays F3 and sensor cooking functions are disabled.
|
Sensor Circuit Short or Open | View Details |
| F4 |
Microwave shows F4 and will not start; sometimes occurs after a loud pop.
|
Door Latch / Interlock Circuit Error | View Details |
| F5 |
Microwave displays F5 and may shut down during operation.
|
Relay or Power Control Error | View Details |
| F6 |
Microwave shows F6 and may not respond to keypad input.
|
Communication Error Between Display and Main Board | View Details |
| F7 |
Microwave intermittently shows F7 and may shut off mid-cycle.
|
Overcurrent / Line Voltage Error | View Details |
| H97 |
Microwave stops heating and displays H97; unit may still power on.
|
Inverter / Magnetron Communication Error (on some RCA inverter models) | View Details |
| H98 |
Microwave shows H98 and does not heat; sometimes accompanied by a brief humming sound.
|
High Voltage / Inverter Protection Error | View Details |
| H99 |
Microwave intermittently shuts down with H99 error; may reset after cooling.
|
Inverter Overheat / Overcurrent Protection | View Details |
| PF |
Microwave display shows PF; clock resets after power interruption.
|
Power Failure / Line Voltage Interruption | View Details |
| SE |
Microwave beeps repeatedly and displays SE; keys may activate by themselves or not respond.
|
Stuck Key / Shorted Keypad Error | View Details |
| – |
Microwave cavity light and fan run, but turntable and magnetron do not start (no heating).
|
Relay or Control Output Failure | View Details |
| – |
Microwave clock or display is very dim or segments are missing.
|
Display Module Degradation | View Details |
| – |
Microwave display works but dims or flickers when cooking.
|
Line Voltage Drop or Overload | View Details |
| – |
Microwave door will not open or is difficult to open after cooking.
|
Door Latch Mechanism Binding | View Details |
| – |
Microwave door will not stay closed or pops open during operation.
|
Door Latch or Catch Failure | View Details |
| – |
Microwave exhaust fan on over-the-range (OTR) model does not run or runs only on one speed.
|
Exhaust Fan Motor or Control Failure | View Details |
| – |
Microwave has a burning or electrical smell during or after use.
|
Overheating Component or Cavity Contamination | View Details |
| – |
Microwave has power but will not start when START is pressed; no error code.
|
Door Interlock or Control Input Failure | View Details |
| – |
Microwave interior light does not come on, but unit heats and runs normally.
|
Cavity Lamp Failure | View Details |
| – |
Microwave keypad buttons are unresponsive or require very hard presses.
|
Worn Membrane Keypad | View Details |
| – |
Microwave makes loud buzzing, humming, or grinding noises during operation.
|
Mechanical or High-Voltage Noise | View Details |
| – |
Microwave runs but does not heat; no error code displayed.
|
Magnetron or High-Voltage Circuit Failure | View Details |
| – |
Microwave runs for a few seconds then shuts off with no code; may restart if door is opened and closed.
|
Intermittent Door Switch or Overheat Protection | View Details |
| – |
Microwave runs with door open or starts when door is closed without pressing START.
|
Door Interlock Safety Failure | View Details |
| – |
Microwave sparks or arcs inside the cavity during cooking.
|
Cavity Arcing / Waveguide Contamination | View Details |
| – |
Microwave trips the household circuit breaker or blows a fuse when starting.
|
Short Circuit or Overcurrent Condition | View Details |
| – |
Microwave turntable does not rotate, but heating and other functions work.
|
Turntable Motor or Drive Failure | View Details |
| – |
Microwave will not start at all; display is blank and no lights or sounds.
|
No Power / Line Fuse Open | View Details |
No matching codes found
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