Mitsubishi Heavy Industries Error Codes Introduction
Ever waking up in the morning only to see a set of weird error codes on your Mitsubishi Heavy Industries Aircon? Unsure what is it and how do you troubleshoot it? Rest assured, you can always get into contact with an aircon technician from Silverback Aircon to request for a site visit, aircon servicing or even aircon repair. This article acts as a guide to bring you through some of the possible Mitsubishi Heavy Industries Aircon Error Codes. Additionally, it also gives you the possible actions that could be taken to resolve these issues.
However, if you are the type of hands-on personnel and wishes to take action immediately, you can contact us here. Alternatively, feel free to click on the button below to contact us via WhatsApp. We will be able to use our expertise to provide our professional advice to you. Additionally, feel free to give us a call at +65 9651 5152 for a free consultation.
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Mitsubishi Heavy Industries vs Mitsubishi Electric
Before we dive straight to the topic, you must be wondering about the differences between Mitsubishi Heavy Industries Aircon & Mitsubishi Electric Aircon. Here is an overview of the differences between both of them.
Mitsubishi Electric is known to have develop a high-quality and reliable AC System. This brand delivers some of the most advanced air-conditioner units around Singapore. Additionally, they are also known to be durable enough. On the other hand, Mitsubishi Heavy Industries develop reliable systems that can last longer as compared to Mitsubishi Electric. In addition, their units are able to serve bigger rooms with no concerns with regards to the size of the room. Some of the benefits includes Better Performance, Longer Experience, Cost Effective, etc.
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Possible Mitsubishi Heavy Industries Aircon Error Codes
When the AC unit performs an emergency stop, the reason is indicated by a set of error code. The possible Mitsubishi Heavy Industries Aircon Error Codes is split into 2 portion. However, it is highly dependent on the brand and model of your aircon. As a result, there’ll definitely be some differences.
Model: SCM40, 45, 50, 60, 71, 80
| Type of Error Codes | Description | Possible Causes |
| E1 | Error of Wired Remote Controller Wiring |
– Broken Wire Remote Controller Wire – Defective Indoor PCB |
| E5 | Error of Signal Transmission |
– Defective Power Supply – Broken Signal Wire – Defective Indoor/Outdoor Sub PCB |
| E9 | Drain Trouble |
– Defective Drain Pump – Broken Drain Wire – Defective Indoor PCB Faulty |
| E16 | Indoor Fan Motor Error |
– Defective Fan Motor – Poor Connector Connection |
| E35 | Cooling High Pressure Protection |
– Overload Operation – Overcharge – Broken Outdoor Heat Exchange Sensor Wire – Service Valve is closed |
| E36 | Overheating on Compressor |
– Gas Shortage – Defective Discharge Pipe Sensor – Service Valve is closed |
| E37 | Outdoor Heat Exchange Sensor Error |
– Broken Heat Exchange Sensor Wire – Poor Connector Connection – Outdoor Main PCB Faulty |
| E38 | Outdoor Air Temperature Sensor Error |
– Broken Outdoor Air Temperature Sensor Wire – Poor Connector Connection – Outdoor Main PCB Faulty |
| E39 | Discharge Pipe Sensor Error |
– Broken Discharge Pipe Sensor Wire – Poor Connector Connection – Outdoor Main PCB Faulty |
| E42 | Current Cut |
– Compressor Locking – Open phase on compressor output – Short circuit on power transistor service valve is closed |
| E45 | Outdoor Sub PCB Communication Error |
– Outdoor Sub PCB Faulty – Poor connector connection between outdoor Main PCB and Sub PCB |
| E47 | Active Filter Voltage Error | – Defective Active Filter |
| E48 | Outdoor Fan Motor Error |
– Defective Fan Motor – Poor Connector Connection |
| E51 | Power Transistor Error | – Broken Power Transistor |
| E53 | Outdoor Suction Pipe Sensor Error |
– Broken Suction Pipe Sensor Wire – Poor Connector Connection – Outdoor Sub PCB Faulty |
| E57 | Refrigeration Cycle System Protective Control |
– Service Valve is closed – Insufficient Refrigerant |
| E58 | Current Safe Stop |
– Overload Operation – Overcharge – Compressor Locking |
| E59 | Trouble of Outdoor Unit |
– Broken Compressor Wire – Compressor Blockage |
| E60 | Rotor Lock |
– Defective Compressor – Open Phase on Compressor – Defective Outdoor PCB |
Model: SCM100,125
Most of the error codes is similar to the ones above. The table below shows the Mitsubishi Heavy Industries Aircon Error Codes that are different:
| Type of Error Codes | Description | Possible Causes |
| E35 | Cooling High Pressure Protection |
– Overload Operation – Overcharge – Broken High Pressure Sensor Wire – Service Valve is closed |
| E40 | Heating High Pressure Protection |
– Overload Operation – Overcharge – Broken High Pressure Sensor Wire – Service Valve is closed |
| E41 | Power Transistor Error | – Power Transistor Overheat |
| E51 | Inverter and Fan Motor Anamoly |
– Outdoor Inverter/Control PCB Faulty – Outdoor Fan Motor Faulty |
| E54 | High Pressure Sensor Error | – Broken High Pressure Sensor Wire |
FACING THESE AIRCON PROBLEMS?
Noisy Aircon?
Aircon Thermistor Issues?
Aircon Bad Odour?
Aircon Compressor Repair?
Mitsubishi Heavy Industries Aircon Light-Blinking?
Alternatively, you can see whether the light is blinking, and it will help you in determining what is the type of error. Meanwhile, the table below shows some of the possible errors observed via number of light blinking:
| RUN Light | TIMER Light | Description |
| Light Up | Flash 1 time | Power Cut |
| Flashes 2 times | Outdoor Unit Error | |
| Flashes 3 times | Over Current (Safe Current) | |
| Flashes 4 times | Power Transistor Failure | |
| Flashes 5 times | Compressor Overheat | |
| Flashes 6 times | Error of communication between Indoor & Outdoor Units | |
| Flash 1 time | Light Up | Indoor Heat Exchange Sensor Error |
| Flashes 2 times | Room Temperature Sensor Error | |
| Flashes 5 times | Voltage Error | |
| Flashes 6 times | Indoor Fan Motor Error | |
| Continuous Flashing | Flash 1 time | Outdoor Air Temperature Sensor Error |
| Flashes 2 times | Outdoor Heat Exchange Pipe Sensor Error | |
| Flashes 4 times | Vent Pipe Sensor Error | |
| Flashes 2 times | Flashes 2 times | Rotor Lock |
However, in the situation that none of the above matches your scenario, feel free to contact us directly for advice and consultation. We will be glad to offer you our help.
Conclusion ：
In conclusion, an error code will usually be displayed on the Room AC if any abnormal actions is observe. As a result, being able to identify the type of Mitsubishi Heavy Industries Aircon Error Codes helps you to accurately link up with the technician. In addition, the technician will be able to prepare and bring the necessary spare parts needed during the appointment. Meanwhile, feel free to contact us at +65 9651 5152 if you have any other queries or even to schedule for a Aircon Repair Service.
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Aircon Error Codes for other brands
FAQ
Why is my mitsubishi heavy industries aircon light blinking?
The possible errors can be determined via the number of times the light blinks.
light up + flash 1 time : power cut. flash 2 times : outdoor unit error. flash 3 times : over current. flash 4 times : power transistor failure. flashes 5 times : compressor overheat. flashes 6 times : error of communication between indoor and outdoor units.
for other combinations, you may refer to the table above.
Why is my mitsubishi heavy industries aircon not cold?
When such a situation occurs, it may be due to a clogged air filter, a dirty condensor coil, a defective compressor or even a busted thermostat. There can also be other reasons and it is best to contact us for help, given that we have a team of experienced and professional technicians who are ready to help.
How to maintain my mitsubishi heavy industries aircon?
It is recommended that you regularly clean the air filters of your mitsubishi heavy industries aircon. You should change the air filter once a month, and check if the air conditioning coils are clean. You also need to flush drain channels, as a clogged drainage system may affect the aircon’s ability to reduce humidity.
A good idea would be to hire professionals to offer you maintenance and washing services. Here at silverback aircon, we are dedicated to ensuring the health and maintenance of your air conditioners.