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Mitsubishi PEAD-RP50JAL Error Codes

Updated · by Aurora Star Tech Inc.

Mitsubishi PEAD-RP50JAL error codes and diagnostic codes (also listed as PEAD-RP50JA(L)). The PEAD-RP50JAL is a Mitsubishi heat pump in the Mr. Slim PEAD-RP JA(L) ducted indoor unit series.

Homeowner with a heat pump problem? Call (647) 657-2977 or book a service call — licensed technicians across Vaughan and the GTA.

Mitsubishi PEAD-RP50JAL error codes list

CodeMeaningSeverity
E0Remote controller not receiving from indoor unitMedium
E1Remote controller memory errorLow
E2Remote controller clock errorLow
E3Remote controller cannot transmitMedium
E4Indoor unit not receiving from remote controllerMedium
E5Indoor unit cannot transmit to remote controllerMedium
E6Indoor/outdoor communication - indoor not receivingHigh
E7Indoor unit transmit error to outdoor unitHigh
FbIndoor control board memory errorHigh
P1Room (intake) air sensor TH1 open or shortedMedium
P2Liquid pipe sensor TH2 open or shortedMedium
P4Drain float switch disconnectedMedium
P5Drain overflow - float switch wet with pump runningHigh
P6Coil freeze or overheat protectionHigh
P8Pipe temperature out of range (coil not cooling or heating)High
P9Coil sensor TH5 open or shortedMedium
PAWater leak detectedHigh

Troubleshooting the PEAD-RP50JAL

All Mitsubishi Heat Pump error codes →

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

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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