AC Error Codes → Hitachi
Hitachi AC Error Codes — Complete List & Fixes
Hitachi split ACs show error codes on the indoor display or as timer-lamp blink patterns. Codes can vary slightly by model series (Kashikoi, Merai, Izen, Shizen).
11 codes explained · DIY checks included · Same-day Hitachi AC repair in Ahmedabad
👆 Select your AC brand and type the code shown on your AC display or remote
All Hitachi AC Error Codes
Indoor PCB or communication fault
Likely causes: Faulty indoor control board, loose connector, voltage fluctuation
What to do: Switch off mains for 5 minutes and restart. If the code returns, the indoor PCB needs inspection.
📱 Book Same-Day Repair for E1Outdoor unit protection triggered
Likely causes: Compressor overload, high discharge temperature, blocked condenser coil
What to do: Check the outdoor unit is not blocked by dust or objects. Clean the condenser; if it persists, call for service.
📱 Book Same-Day Repair for E2Indoor coil thermistor fault
Likely causes: Sensor disconnected, damaged or out of range
What to do: Sensor replacement is a quick technician job. The AC may still run but will cool poorly.
📱 Book Same-Day Repair for E3Outdoor temperature sensor fault
Likely causes: Faulty or disconnected outdoor thermistor
What to do: Needs sensor check and replacement at the outdoor unit.
📱 Book Same-Day Repair for E4Power module (IPM) overheating
Likely causes: Dirty condenser, outdoor fan failure, extreme ambient heat
What to do: Switch the AC off, clean the outdoor coil, ensure airflow around the outdoor unit. If it repeats, call us.
📱 Book Same-Day Repair for E5Indoor fan motor failure
Likely causes: Jammed blower, failed fan motor or motor capacitor
What to do: Turn the unit off and book a repair — running with a stalled fan can ice up the coil.
📱 Book Same-Day Repair for E6Indoor-outdoor communication error
Likely causes: Loose or damaged interconnecting cable, PCB fault
What to do: Restart once at the MCB. If the error returns, the connecting wiring needs to be checked.
📱 Book Same-Day Repair for E7Drainage error / float switch activated
Likely causes: Blocked drain pipe, full drain pan, failed drain pump
What to do: Check if water is dripping from the indoor unit. Drain-line cleaning usually fixes this.
📱 Book Same-Day Repair for E9Indoor room temperature sensor error
Likely causes: Faulty room thermistor
What to do: AC may cool erratically. Sensor replacement is inexpensive and fast.
📱 Book Same-Day Repair for F1Indoor heat-exchanger sensor error
Likely causes: Coil sensor open or short circuit
What to do: Book a service visit for sensor replacement.
📱 Book Same-Day Repair for F2Self-diagnosis blink pattern (count the flashes)
Likely causes: Each flash count maps to a specific fault in the service manual
What to do: Note how many times the lamp blinks in a cycle and tell us on WhatsApp — we can identify the fault before visiting.
📱 Book Same-Day Repair for Timer lamp blinkingDisclaimer: error codes can vary by model and year. This guide covers the most common Hitachi split AC codes in India. When in doubt, send us a photo of your AC display on WhatsApp — diagnosis advice is free.
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