Introduction
This manual provides comprehensive instructions for the Calvas Airwell Electra RC-3 RC-4 RC-7 Air Conditioner Remote Control. It covers installation, operation, maintenance, and troubleshooting to ensure optimal performance and compatibility with your Airwell or Electra air conditioning unit. Please read this manual carefully before using the remote control.
Setup
Battery Installation
The remote control requires two (2) AAA batteries (not included). Ensure correct polarity when inserting batteries.
- Open the battery compartment cover located on the back of the remote control.
- Insert two AAA batteries, matching the (+) and (-) terminals as indicated inside the compartment.
- Close the battery compartment cover securely.

Image: Remote control with its battery compartment open, showing two AAA batteries ready for insertion. This illustrates the correct way to install batteries.
Remote Coding (for Universal Compatibility)
This remote is designed to be compatible with various Airwell and Electra models. If your air conditioner does not respond immediately, you may need to code the remote:
- Press and hold the SET and MODE buttons simultaneously until a two-digit remote code flashes on the LCD screen.
- Use the + or - buttons to cycle through the available codes until your air conditioner responds.
- Once the air conditioner responds, press the SET button to confirm and save the code.
Operating Instructions
Familiarize yourself with the buttons and LCD display for effective control of your air conditioner.

Image: Front view of the remote control, showing the LCD screen displaying temperature, mode, and fan settings, along with the various control buttons.
- Power Button (⏻): Press to turn the air conditioner ON or OFF.
- MODE Button: Cycles through operating modes: Cool, Heat, Fan, Dry, Auto. The current mode is displayed on the LCD.
- TEMP +/- Buttons: Adjusts the desired temperature setting. Press '+' to increase and '-' to decrease.
- FAN Button: Selects fan speed settings (e.g., Low, Medium, High, Auto).
- SWING Button: Controls the louver swing function (if available on your AC unit).
- TIMER Button: Sets the ON/OFF timer for the air conditioner. Refer to your AC unit's manual for specific timer functions.
- SLEEP Button: Activates or deactivates sleep mode, which typically adjusts temperature gradually for comfort during sleep.
- I FEEL Button: Activates the 'I FEEL' function, which measures the temperature at the remote control's location for more precise comfort (if available on your AC unit).
Maintenance
Cleaning
Wipe the remote control with a soft, dry cloth. Do not use liquid cleaners, abrasive materials, or chemical solvents, as these may damage the surface or internal components.
Battery Replacement
Replace batteries when the LCD display dims, the remote becomes unresponsive, or the operating range decreases significantly. Remove old batteries promptly to prevent leakage and damage. If the remote will not be used for an extended period, remove the batteries.
Storage
Store the remote control in a cool, dry place, away from direct sunlight and extreme temperatures.
Troubleshooting
- Remote not responding:
- Check if batteries are inserted correctly with the right polarity.
- Replace old batteries with new AAA batteries.
- Ensure there are no obstructions between the remote control and the air conditioner's receiver.
- Make sure you are within the effective operating range (up to 9 meters).
- Verify the remote is correctly coded for your air conditioner model (refer to "Remote Coding" section).
- LCD display is dim or blank:
- Replace the batteries.
- Limited operating range:
- Replace the batteries.
- Ensure no strong light sources (e.g., direct sunlight) are interfering with the infrared signal.
Specifications
| Brand | Calvas |
| Model Numbers | RC-3, RC-4, RC-7, WMZ 12ST |
| Manufacturer Part Number | CLS-4DE1EF8DD30BE704159E0163375CD206 |
| Material | ABS + Electronic Components |
| Dimensions (Approx.) | 13 x 4.2 x 2.2 cm (5.1 x 1.65 x 0.87 inches) |
| Power Supply | 2 x AAA Batteries (not supplied) |
| Wireless Communication | Infrared (IR) |
| Maximum Range | 9 Meters (29.5 feet) |
| Compatible Devices | Air Conditioner |
| Number of Supported Devices | 1 |
Warranty and Support
Specific warranty information for this product is not available in the provided details. For any product-related inquiries, technical support, or warranty claims, please contact your original retailer or the manufacturer, Calvas, directly. Please retain your proof of purchase for any support requests.