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Midea Error Code EL16: Main board to transit board communication error (Heat Pump)

Updated · by Aurora Star Tech Inc.

Midea error code EL16 on a heat pump means: Main board to transit board communication error. It is also called Midea diagnostic code EL16.

High severityHeat PumpMidea DLCURA ducted single-zone inverter heat pump (outdoor)

Homeowner? What Midea code EL16 means for you

Call a technician Your heat pump is reporting: Main board to transit board communication error. The heat pump has locked out or cannot run properly. One reset is fine; if the code comes back, it needs a licensed technician to find the cause.

Safe things you can check yourself

  • Check the thermostat: right mode (Heat or Cool), set a few degrees past room temperature, and fresh batteries if it uses them.
  • Check both breakers and the outdoor disconnect box beside the outdoor unit; all should be ON.
  • Look at the air filter. If it is grey and clogged, replace it; a blocked filter causes many shutdowns.
  • In winter, keep snow and ice off and away from the outdoor unit. A short defrost cycle with steam is normal.
  • Try one reset: turn the power off for 30 seconds, then back on. If the code comes back, stop resetting and call a technician.

Call (647) 657-2977Book a service call

Licensed technicians serving Vaughan, Toronto and the GTA.

What does Midea error code EL16 mean?

The outdoor main board is not communicating with the outdoor transit board.

Applies to: DLCURAH18-60 AAK/ABK single-zone heat pump outdoor units (18K-60K, regular and High Heat)

Common causes of Midea code EL16

  • Loose or damaged internal cable between outdoor boards
  • Faulty transit board
  • Faulty main board
Safety: Gas, electrical and refrigerant work must be done by a licensed technician. Turn off power and gas before servicing, never bypass a safety control, and always follow the manufacturer's manual for your exact model.

Midea models that use code EL16

DLCURAH18AAKDLCURAH18ABKDLCURAH24AAKDLCURAH24ABKDLCURAH30AAKDLCURAH30ABKDLCURAH36AAKDLCURAH36ABKDLCURAH48AAKDLCURAH48ABKDLCURAH60AAKDLCURAH60ABK

Other Midea Heat Pump codes

CodeMeaning
EC53outdoor ambient temperature sensor fault
EC54Discharge temperature sensor (TP) open/short
EC57refrigerant pipe temperature sensor fault
EC71Outdoor DC fan motor over-current
EC72Outdoor DC fan motor lack-phase
EL01Indoor/outdoor communication error
LC06Inverter module (IPM) high temperature protection
PC0ACondenser high temperature protection
PC0FPFC module protection
PC0LOutdoor unit low-temperature protection
PC00Inverter module (IPM) protection
PC02Compressor top temperature protection

All Midea Heat Pump error codes →

Midea code EL16: homeowner questions

What does Midea code EL16 mean?

Main board to transit board communication error. The outdoor main board is not communicating with the outdoor transit board.

Is it safe to keep using my heat pump with code EL16?

It depends on the cause. The heat pump has locked out or cannot run properly. One reset is fine; if the code comes back, it needs a licensed technician to find the cause.

Can I reset Midea code EL16 myself?

You can try one reset (power off for 30 seconds, then on). If Midea code EL16 comes back, the cause is still there and a licensed technician should check it.

Who can fix Midea code EL16 near me?

Aurora Star Tech Inc. repairs Midea heat pumps in Vaughan, Toronto and across the GTA. Call (647) 657-2977 or book a service call online.

Homeowner help: AC Running But Not Cooling: What to Check · Heat Pump Not Heating or Blowing Cold Air

Source: Midea/Carrier DLCURA Installation Instructions (Catalog DLCURA-03SI), Table 11 Outdoor Unit Diagnostic Codes, p.19. Written in our own words as a summary; always check the original manual.

General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.

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