Midea Air Conditioner E1 Error Code: What It Means and How to Fix It
E1 on a Midea portable air conditioner means a room temperature sensor error. Newer Midea portables show the same fault as EH60. A restart sometimes clears it, but if the code comes back, the sensor or its circuit needs a repair that Midea service should handle.
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This page covers one code. See every Midea air conditioner code we cover on our Air conditioner & heat pump error codes page.
What the E1 code means
Midea's US portable AC FAQ lists: "E1 - Room temperature sensor error." Midea's newer portable manuals (for example MAP05S1AWT/MAP07S1AWT) use four-character codes and list the same fault as "EH60-Room temperature sensor error."
The room temperature sensor tells the control board how warm the room air is. Without a believable reading, the unit can't decide when to cool, so it stops and shows the code.
Midea's Duo portable manuals explain how the longer codes appear: they come in formats like Ehxx, Ecxx, Elxx, PCxx, PHxx and PLxx, and "the display will alternate displaying the two letter combination and the two number combination." So EH60 may flash as EH, then 60.
Look-alike codes that mean something different (per Midea's FAQ and manuals):
| Code | Midea meaning |
|---|---|
| E2 / EH61 | Evaporator temperature sensor error |
| E3 / EC52 | Condenser temperature sensor error (select models) |
| E4 / EH0b | Display panel communication error |
| P1 | Bottom tray is full (drain the unit) |
Window and mini-split units are different. Midea's window AC manual (MAW05R1WBL-T) uses AS for its room temperature sensor error, and Midea's mini-split owner manuals list codes only as families (E(x), EH(xx) and so on) without meanings. If you have a window unit or mini-split, use that product's manual rather than this page.
Likely causes (most common first)
Midea doesn't publish a cause list for E1, so this is kept to what the code itself tells you:
- A temporary control glitch. Midea's own first step is to restart the unit, which suggests some E1 codes clear with a reset.
- A failed room temperature sensor. The sensor is a small part inside the cabinet.
- A loose or damaged connection between the sensor and the control board.
- A control board fault. Less likely, but possible if a new sensor doesn't fix it.
Causes 2 to 4 are inside the case. Midea's FAQ says "It is not advised to remove the case of the unit," so these are service repairs.
How to fix it, step by step
Try these in order. After each step, run the unit in Cool mode for a few minutes and see if E1 returns.
- Turn the unit off, then unplug it. Use the power button first. Midea's manual says not to stop the unit by pulling out the plug.
- Wait a few minutes, then plug it back in. Turn it on and select Cool. Midea's Duo manuals say: "When an error occurs, restart the unit."
- Plug it straight into a wall outlet. Midea's manuals say not to use an extension cord or an adaptor plug. If you were using one, remove it and plug the unit directly into a grounded outlet.
- Check the plug and cord. Look for damage, scorching, or a loose fit in the outlet. Midea's manual says a damaged power cord must be replaced with a new cord from the manufacturer, so don't use the unit if you find damage.
- Do routine care while it's off. Midea recommends cleaning the air filter every 2 weeks and keeping the air inlets clear. This won't repair a failed sensor, but it rules out airflow problems while you're checking the unit.
- Stop and call if E1 comes back. Midea's Duo manuals say: "If the error code still appears when the unit restarts, unplug the power cord and contact customer service at 1-866-646-4332."
Test the part
Unplug the air conditioner (or switch off its breaker) and wait a few minutes before you open any panel. Never open or puncture the sealed refrigerant system — that needs a certified technician. Take resistance (ohm) readings only with the power disconnected, and if you’re not comfortable using a multimeter, stop and call a pro.
Central AC, heat pump or mini-split: turn the system off at the thermostat, then switch off the power at the outdoor disconnect and the breaker before you touch anything. Refrigerant work and the high-voltage capacitor (it can hold a dangerous charge even with the power off) are for a licensed HVAC technician only.
There's no safe owner test for the E1 sensor. It's inside the cabinet, and Midea advises against removing the case. Stick to these outside checks:
- Unplug the air conditioner before you check anything.
- Write down the exact code you see, including whether it alternates (for example EH, then 60). That tells service which sensor to check.
- Inspect the outside of the unit. Look for cracked panels, signs of water getting in, or a damaged cord. Don't use the unit if you see any of these.
- Check the filter and grilles. Remove the filter, dust off the debris as Midea describes, and put it back. Midea warns not to run the unit without the filter.
- Don't open the case. No meter readings are given here because the sensor isn't owner-accessible, and Midea publishes no owner resistance values for it.
If the outside checks are fine and E1 keeps coming back after a restart, call Midea.
Safety notes
- Unplug before cleaning or checking anything. Midea's manuals say: "Always unplug the unit before cleaning or servicing."
- No extension cords or adapter plugs. Midea warns they're a fire and shock risk.
- Don't spray or wash the unit with water. Midea warns this causes electrical danger.
- Don't open the cabinet. The unit contains refrigerant and live electrical parts. Midea's MAP05S1AWT manual says the unit uses R32, a flammable refrigerant, so refrigerant work is strictly for qualified service.
- Don't keep resetting a unit that won't stay running. One or two restarts are enough to tell you whether it's a glitch.
When to call a pro
Contact Midea or an authorized Midea servicer if:
- E1 (or EH60) comes back after you restart the unit.
- The unit won't cool at all, or shows a different code.
- You see cord damage, a burning smell, or water inside the unit.
- The unit is under warranty. Midea's warranty says service must be obtained from Midea Consumer Services or an authorized Midea servicer.
Midea's US manuals give customer service as 1-866-646-4332. Have the model number ready. Midea says it's on the silver nameplate on the back of the unit, and the serial number is on the white barcode sticker.
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FAQ
What does E1 mean on a Midea portable air conditioner?
Midea says it's a room temperature sensor error. On newer models the same fault shows as EH60.
Can I reset a Midea E1 error?
Yes. Turn it off, unplug it for a few minutes, and restart it. If E1 comes back, Midea says to unplug it and contact customer service.
Is E1 the same as P1?
No. P1 means the bottom water tray is full and you can usually fix it by draining the unit. E1 is a sensor fault.
Can I replace the temperature sensor myself?
Midea doesn't advise removing the case, and it publishes no owner repair steps for the sensor. Have Midea service or an authorized servicer do it, especially under warranty.
Does E1 mean the same thing on a Midea mini-split?
Not necessarily. Midea's mini-split owner manuals don't define E1, and codes vary by product. Check your mini-split's manual or call your installer.
Related
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- Midea Air Conditioner P1 Error Code
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Sources
- Midea US – All Portable Air Conditioners (FAQ: "What do the error codes mean?"): midea.com/us/support/faq/air-conditioners/all-portable-air-…
- Midea US – User Manual, MAP05S1AWT/MAP07S1AWT portable air conditioner: midea.com/content/dam/midea-aem/us/air-conditioners/portabl…
- Midea US – User Manual, Duo portable air conditioner (MAP12S1TBL/MAP14S1TBL): midea.com/content/dam/midea-aem/us/air-conditioners/portabl…
- Midea US – User Manual, MAW05R1WBL-T window air conditioner: midea.com/content/dam/midea-aem/us/air-conditioners/window-…
- Midea US – Ductless Split Owner's Manual: midea.com/content/dam/midea-aem/us/heating-and-cooling/AC-S…
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