Fujitsu Error Code E8:00: Indoor Fan Motor Fault
How to Fix Fujitsu Code E8:00
- Step 1: Turn the unit off and then back on to see if the error clears. Sometimes a simple reset can resolve temporary glitches.
- Step 2: Check the indoor unit's air filter to ensure it's clean. A severely clogged filter can sometimes put extra strain on the fan motor. Replace if needed.
- Step 3: Visually inspect the indoor unit's fan blades (if visible) for any obvious obstructions. Remove any debris carefully.
- Step 4: If the error persists after these steps, contact a qualified HVAC technician for further diagnosis and repair.
How to Reset Fujitsu Code E8:00
- Turn off the unit using the remote control or wall controller.
- Turn off the circuit breaker for the outdoor and indoor units. Wait 60 seconds.
- Restore power at the breaker.
- Turn the unit on with the remote control. If the error returns, the fault needs professional diagnosis.
Resetting clears the code from the display but does not fix the underlying fault. If the code returns after reset, proceed to the diagnostic steps above.
What Does Fujitsu Error Code E8:00 Mean?
The E8:00 error code on your Fujitsu mini-split indicates a problem with the indoor fan motor. This motor is responsible for circulating air across the indoor coil, distributing either heated or cooled air into the room. When the system detects that the fan motor isn't running correctly, it shuts down to prevent further issues. This could be due to a motor failure, wiring problems, or issues with the control board that sends power to the motor. Without a functioning indoor fan, the unit can't effectively heat or cool the room. The system is designed to stop operating when this fault occurs to prevent potential damage to other components, such as the indoor coil freezing up during cooling operation or overheating during heating operation. Addressing this issue promptly will restore your system's ability to provide comfortable temperatures.
Common Causes
- Faulty indoor fan motor
- Wiring issues between the indoor fan motor and the control board
- Defective indoor control board not sending proper voltage to the fan motor
- Obstruction preventing the fan from spinning freely
Diagnostic Steps
| If... | Check | Expected |
|---|---|---|
| Unit displays E8:00 error | Measure voltage at the fan motor connector on the indoor control board | DC voltage matching the motor's rating (e.g., 24V DC) |
| No voltage at the fan motor connector | Check the control board for any blown fuses or damaged components | Fuses should be intact, and no visible damage to the board |
| Voltage present at the board, but motor doesn't run | Measure the resistance of the fan motor windings | Specific resistance value per the service manual (e.g., 50-150 ohms). Open circuit indicates a failed motor. |
| Fan motor resistance is within range, but motor still doesn't run | Inspect wiring harness between the control board and fan motor for continuity and shorts | No breaks or shorts in the wiring |
Applicable Fujitsu Models
Replacement Parts
| Part | OEM Number | Est. Cost | Where to Buy |
|---|---|---|---|
| Indoor Fan Motor | V0772698 | — | Find Part |
| Indoor Control Board | — | — | — |
| Air Filter | — | — | — |
Related Codes on Same Models
Other codes that affect the same Fujitsu model families as E8:00.
| Code | Description | Severity |
|---|---|---|
| E0:00 | Communication Error (Indoor to Remote) | Warning |
| E1:00 | Communication Error (Indoor to Outdoor) | Warning |
| E2:00 | Room Temp Sensor Open Circuit | Warning |
| E3:00 | Room Temp Sensor Short Circuit | Warning |
| E4:00 | Indoor Coil Sensor Open | Warning |
| E5:00 | Indoor Coil Sensor Short | Warning |
| E6:00 | Outdoor Coil Sensor Fault | Warning |
| E7:00 | Outdoor Ambient Sensor Fault | Warning |
| E9:00 | Drain Pump / Float Switch | Warning |
| EE:00 | Communication Error (Multi-System) | Warning |