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Troubleshooting · Trane / Mitsubishi ElectricTrane / Mitsubishi Electric MUZ-FS18NA*** 11 blinksStop valve or closed-valve condition→ Troubleshooting · Trane / Mitsubishi ElectricTrane / Mitsubishi Electric MUZ-FS15NAH*** 1 blinkOutdoor power-system abnormality→ Troubleshooting · Trane / Mitsubishi ElectricTrane / Mitsubishi Electric MUZ-FS09NA*** 10 blinks / restartOutdoor fan motor failure→ Troubleshooting · Trane / Mitsubishi ElectricTrane / Mitsubishi Electric MSZ-FS15NA*** Solid lampOutdoor control-system nonvolatile-memory failure→ Troubleshooting · Trane / Mitsubishi ElectricTrane / Mitsubishi Electric MUZ-FS09NAH*** 10 blinks / restartOutdoor fan motor failure→ Troubleshooting · Trane / Mitsubishi ElectricTrane / Mitsubishi Electric MUZ-FS18NA*** 8 blinks / restartCompressor synchronous abnormality→ Troubleshooting · Trane / Mitsubishi ElectricTrane / Mitsubishi Electric MSZ-FS12NA*** 3 blinksIndoor fan motor failure→ Troubleshooting · Mitsubishi ElectricMitsubishi Electric MSZ-FS15NA*** 4 blinksIndoor control-system failure→ Troubleshooting · Trane / Mitsubishi ElectricTrane / Mitsubishi Electric MUZ-FS06NAH*** 2 blinksOutdoor thermistor short or open circuit→ Troubleshooting · Mitsubishi ElectricMitsubishi Electric MUZ-FS12NA*** 6 blinksIndoor-outdoor serial-signal failure→ Troubleshooting · Mitsubishi ElectricMitsubishi Electric MUZ-FS18NAH*** 2 blinksOutdoor thermistor short or open circuit→ Troubleshooting · Mitsubishi ElectricMitsubishi Electric MUZ-FS09NAH*** 17 blinksOutdoor refrigerant-system abnormality→