HVACopediaMitsubishi · Heat pump
E1 Remote controller memory error
What the control is telling you
The remote cannot read its own non-volatile memory.
Applies to: PEAD-RP35/50/60/71/100/125/140JA and JA(L) ducted indoor units (220-240 V models)
Likely causes
- Faulty remote controller
Test and repair steps
- Replace the remote controller.
Models that show this code
14 models in Mr. Slim PEAD-RP JA(L) ducted indoor unit
Other codes on the same units
- E0 Remote controller not receiving from indoor unit
- E2 Remote controller clock error
- E3 Remote controller cannot transmit
- E4 Indoor unit not receiving from remote controller
- E5 Indoor unit cannot transmit to remote controller
- E6 Indoor/outdoor communication - indoor not receiving
- E7 Indoor unit transmit error to outdoor unit
- P1 Room (intake) air sensor TH1 open or shorted
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Source: Mitsubishi Electric PEAD-RP35-140JA(L) Service Manual, 10-3 Self-diagnosis action table, p.34. Summarized in our own words; check the original manual for your model.
Homeowner looking at this code? See what it means for you and when to call a technician.
For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.