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Mitsubishi Error Code Louver display: Swing louver action indicator (Heat Pump)

Updated · by Aurora Star Tech Inc.

Mitsubishi error code Louver display on a heat pump means: Swing louver action indicator. It is also called Mitsubishi diagnostic code Louver display.

Low severityHeat PumpMr. Slim PEAD-RP JA(L) ducted indoor unit

Homeowner? What Mitsubishi code Louver display means for you

Usually minor Your heat pump is reporting: Swing louver action indicator. This code is usually informational or minor. The safe checks below often clear it; call us if it keeps showing up.

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 Mitsubishi error code Louver display mean?

The louver symbol on the wired remote shows what the swing louver is doing. It does not appear when the louver is not moving. A separate indicator appears when airflow is set low or downward in COOL or DRY mode (operation depends on model); after one hour it switches off and the airflow direction changes too.

Applies to: Mr. Slim PEAD-RP JA(L) ducted indoor units with PAR-21MAA wired remote

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.

Mitsubishi models that use code Louver display

PEAD-RP35JAPEAD-RP35JALPEAD-RP50JAPEAD-RP50JALPEAD-RP60JAPEAD-RP60JALPEAD-RP71JAPEAD-RP71JALPEAD-RP100JAPEAD-RP100JALPEAD-RP125JAPEAD-RP125JALPEAD-RP140JAPEAD-RP140JAL

Other Mitsubishi Heat Pump codes

CodeMeaning
FbIndoor control board memory error
FILTERClean the filter indicator
LED1 (indoor board)Indoor board LED1 - control power
LED2 (indoor board)Indoor board LED2 - remote controller power
LED3 (indoor board)Indoor board LED3 - indoor/outdoor communication
Locked indicatorRemote buttons locked
NOT AVAILABLERemote message - function not available
P1Room (intake) air sensor TH1 open or shorted
P2Liquid pipe sensor TH2 open or shorted
P4Drain float switch disconnected
P5Drain overflow - float switch wet with pump running
P6Coil freeze or overheat protection

All Mitsubishi Heat Pump error codes →

Mitsubishi code Louver display: homeowner questions

What does Mitsubishi code Louver display mean?

Swing louver action indicator. The louver symbol on the wired remote shows what the swing louver is doing. It does not appear when the louver is not moving. A separate indicator appears when airflow is set low or downward in COOL or DRY mode (operation depends on…

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

Usually yes. Code Louver display is normally minor, but if it keeps coming back have it checked.

Can I reset Mitsubishi code Louver display myself?

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

Who can fix Mitsubishi code Louver display near me?

Aurora Star Tech Inc. repairs Mitsubishi 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

Troubleshooting guides

Source: Mitsubishi PEAD-RP35JA(L) Service Manual, Part Names and Functions, p.4. 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.

Emergency HVAC Service

647-657-2977