Error Codes and Troubleshooting for Mitsubishi Heavy Industries Air Conditioners
Error codes are displayed on your remote control and are a great way to see what issues your aircon might be having. Below is a list of Mitsubishi Heavy Industries air conditioner error codes. If you see your error in the list and are not certain you can fix the problem then it is suggested you contact your local air conditioning contractor. You can relay the error code and if the contractor cannot help you fix the problem over the phone you will need to arrange a service inspection.
Mitsubishi Heavy Industries Air Conditioner Error Codes
| E1 | Remote control communication error |
| E2 | Duplicate indoor unit address |
| E3 | Outdoor unit signal line error |
| E5 | Communication error during operation |
| E6 | Internal heat exchanger temperature thermistor abnormality (Thi-R) |
| E7 | Internal return air temperature thermistor abnormality (Thi-A) |
| E9 | Unloading problem |
| E10 | Excessive number of indoor units with remote control |
| E12 | Address setting error with mixed setting method |
| E16 | Internal fan motor abnormality (FDT series) |
| E16 | Internal fan motor abnormality (FDK series) |
| E19 | Indoor unit operation control unload motor control mode abnormality |
| E28 | Remote control temperature thermistor abnormality (ThC) |
| E30 | Incompatible connection of indoor and outdoor unit |
| E31 | Replicated outdoor unit address no. |
| E32 | Open L3 phase in the primary side power supply |
| E36 | Drain pipe temperature error (Tho-D1, D2) |
| E36 | Liquid overflow abnormality |
| E37 | Abnormalities of external heat exchanger temperature thermistor (Tho-R) and sub-cooling coil temperature thermistor (Tho-SC, -H) |
| E38 | Outdoor temperature thermistor abnormality (Tho-A) |
| E39 | Drain pipe temperature thermistor abnormality (Tho-D1, D2) |
| E40 | High pressure abnormality (63H1-1, 2 active) |
| E41 (E51) | Power transistor overheating |
| E42 | Power failure (CM1, 2) |
| E43 | Over-connected indoor units, over-total capacity connection |
| E45 | Communication error between inverter PCB and external control PCB |
| E46 | Mixed address setting methods available on the same network |
| E48 | External DC fan motor abnormality |
| E49 | Low pressure abnormality |
| E53/E55 | Suction pipe temperature thermistor abnormality (Tho-S), Under-dome temperature thermistor abnormality (Tho-C1, C2) |
| E54 | High pressure sensor (TSH) Low pressure sensor (PSL) abnormality |
| E56 | Power transistor temperature thermistor abnormality (Tho-P1, Tho-P2) |
| E58 | Abnormal compressor with loss of synchronization |
| E59 | Compressor start failure (CM1, 2) |
| E60 | Rotor position detection failure (CM1, 2) |
| E61 | Communication error between main unit and backup units System error |
| E63 | Emergency stop |
Common Mitsubishi Heavy Industries Air Conditioner Problems
Water is leaking from my air conditioner.If your indoor unit is leaking water, there might be several problems. Your air conditioner can have a blocked drain line, be improperly fitted, preventing water from dripping out of the unit, or have a refrigeration problem. Please get in touch with your local air conditioning contractor if this happens.
My air conditioner will not start.There are several things you may do to figure out if your air conditioner isn’t working properly. First, make sure the remote batteries are completely charged. If necessary, replace them with new ones. In the event that you own a wall controller, see if the remote is displaying any error codes. Our Split systems display trouble codes by a series of flashes on the Run light and Timer light.whether it is safe to do so, make sure the electricity has not been cut off, see whether the circuit breaker has tripped, and try to reset the circuit breaker. Please get in touch with your local air conditioning contractor if your air conditioner still won’t switch on.
My air conditioner has water running from the outdoor unit drain pipe.This is encouraging. When the outdoor unit is turned on and water is flowing out of the drain pipe adjacent to it, the air conditioning unit is functioning appropriately and was placed correctly.
Can i run my air conditioner all night?Yes. You may operate a Mitsubishi Heavy Industries air conditioner safely through the whole night while you’re asleep. Additionally, you may use the night mode option to guarantee the device operates effectively at night.
Should i leave my windows open when operating the air conditioner?We advise closing all of your windows to maximiee the performance of your air conditioner and to heat or cool your home more quickly.
Other Air Conditioner Brand Error Codes
