T7WSD0315 Genuine Control PCB for Mitsubishi Electric Air Conditioners, Mitsubishi Aircon Control Board Replacement

T7WSD0315 is a genuine Mitsubishi Electric control PCB for air conditioners. A control board reads temperature sensors and signals from the other unit, then decides what the fan, compressor and valves should be doing. No model list is on file, so match the number printed on your existing board, or quote both the indoor and outdoor model numbers when you enquire.

Air conditioner showing an error code or not starting?

When a control board fails, the system may not respond at all, show an error code or flashing lights, start and stop repeatedly, or run without heating or cooling. Power surges, lightning, moisture and insects getting into the unit are common causes of board damage. Many of the same symptoms can come from a failed sensor, a communication wiring fault or a problem on the power board, so proper diagnosis matters before buying. The error code read from the controller or the board's LEDs is the best starting point.

Part details

• Genuine Mitsubishi Electric part T7WSD0315
• Control PCB for air conditioners
• Match the number on your existing board

Who should fit the board

Air conditioners are hard-wired, so isolate the unit at the outdoor isolator and the switchboard, then have a licensed electrician or air conditioning technician fit the board. Capacitors can hold a charge after the power is off, so allow time before touching anything. Photograph all connectors and any DIP switch settings, and copy those settings across.

Questions about this part

Where do I find my Mitsubishi Electric model number?

Each unit has its own label. The indoor unit's label is usually on the side or under the front cover, and the outdoor unit's label is on the casing. Note both numbers, since the right board depends on which unit it came from.