Hitachi Inverter Split AC 1.5 Ton 3 Star RSNG318HCEA Replacement Remote

This remote replaces the original for Hitachi inverter split AC units, specifically the RSNG318HCEA model and related 1.5 ton 3 star variants from 2020 onwards.

Compatible Models:
RSNG318HCEA, RSM318HFEOBWF, RSQG318HEEA

What you get: one remote (batteries not included). You will need two AAA cells.

How to use: Pop in two AAA batteries (not included). Point at the indoor unit sensor and press a button. That is the whole setup. This is an infrared remote, not Bluetooth, so no pairing dance required.

The button layout matches the original: mode, fan speed, swing, timer, sleep, turbo, and eco. Temperature range 16 to 30 degrees Celsius, displayed in one-degree steps. The display button toggles the indoor unit's LED panel on or off, which is handy if the glow bothers you at night.

One honest note: the backlight feature (present on some original remotes) is not included on this replacement. All the climate control functions work exactly as before, but if you rely on a lit keypad in dark rooms, that is missing. The white-on-black button labels are readable in normal room light.

If your AC does not respond, check the battery polarity and make sure nothing is blocking the sensor on the indoor unit. The remote works from about 8 meters away in a direct line of sight. Wall-mounted units sometimes have the sensor tucked behind the front flap, so open it before testing.

FAQ : 

Q: Will this work with my Hitachi window AC?
A: No, this is for split inverter models only. Window AC remotes use a different code set.

Q: Does it have a power-saving mode?
A: Yes, the Eco button is present and functions the same as the original.

Q: How long do the batteries last?
A: About 8 to 10 months with normal daily use (a few button presses per day). Heavier use drains them faster.

Q: Can I control two Hitachi ACs in the same room with one remote?
A: Yes, if both units are the same series. The IR signal is not unit-specific, so both will respond. If you need independent control, point carefully or block the other unit's sensor.

Q: My model number is slightly different, like RSM318HFEA. Will it work?
A: Likely yes if it is a 1.5 ton inverter from the same generation (2020 to 2023). The code set is shared across the series. If in doubt, message us on Instagram @woniry_remote_house with your exact model code and we will confirm within a few hours.