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Mitsubishi Error Code Centrally Controlled indicator: Operation prohibited by master controller (Heat Pump)

Updated · by Aurora Star Tech Inc.

Mitsubishi error code Centrally Controlled indicator on a heat pump means: Operation prohibited by master controller. It is also called Mitsubishi diagnostic code Centrally Controlled indicator.

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

Homeowner? What Mitsubishi code Centrally Controlled indicator means for you

Usually minor Your heat pump is reporting: Operation prohibited by master controller. 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 Centrally Controlled indicator mean?

The Centrally Controlled indicator shows that operation from this remote has been prohibited by a master (central) controller. Not a unit fault; the central controller has to release it.

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 Centrally Controlled indicator

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

Other Mitsubishi Heat Pump codes

CodeMeaning
E0Remote controller not receiving from indoor unit
E1Remote controller memory error
E2Remote controller clock error
E3Remote controller cannot transmit
E4Indoor unit not receiving from remote controller
E5Indoor unit cannot transmit to remote controller
E6Indoor/outdoor communication - indoor not receiving
E7Indoor unit transmit error to outdoor unit
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

All Mitsubishi Heat Pump error codes →

Mitsubishi code Centrally Controlled indicator: homeowner questions

What does Mitsubishi code Centrally Controlled indicator mean?

Operation prohibited by master controller. The Centrally Controlled indicator shows that operation from this remote has been prohibited by a master (central) controller. Not a unit fault; the central controller has to release it.

Is it safe to keep using my heat pump with code Centrally Controlled indicator?

Usually yes. Code Centrally Controlled indicator is normally minor, but if it keeps coming back have it checked.

Can I reset Mitsubishi code Centrally Controlled indicator myself?

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

Who can fix Mitsubishi code Centrally Controlled indicator 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