- HVAC
- Air conditioner
E5
Gree E5 on an air conditioner: overcurrent protection
Risk level
Medium
Proceed carefully and stop if the check is unclear.
Urgency
Medium
Quick answer
On Gree split units, E5 is overcurrent protection. Gree says it may clear after restarting the unit; if not, call a qualified professional. First check nothing blocks the air inlets and outlets.
Safety first
Stop and check this first
- Gree says not to repair or modify the unit yourself. If you notice a burning smell, abnormal noise, a hot power cord or a tripping breaker, switch off, disconnect power and call a qualified professional.
Safe checks you can perform
- Restarting the unit
- Air inlets and outlets clear
- Supply voltage and components
Leave these tasks to a qualified professional
- Do not attempt this professional task: Measure voltage before replacing parts
- Do not attempt this professional task: Heat exchanger cleaning and test
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Measure voltage before replacing parts
What they doThe technician measures the supply against the nameplate before blaming board or compressor.
They must show youthe measured voltage against the rated value.
In writingthe cause found and any part replaced.
Heat exchanger cleaning and test
What they doThe technician cleans the indoor and outdoor heat exchangers, as Gree says, and tests the unit under load.
They must show youthe unit running without E5.
In writingwhat was cleaned, date and result.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Restarting the unit
- Who:
- you.
- How:
- switch the unit off and on again, as Gree's owner manual says.
- Result that matters:
- whether E5 clears after the restart.
- If it clears:
- Gree considers it can be removed this way; note the date.
- If it stays:
- Gree says to contact a qualified professional.
- Evidence to keep:
- a photo of the indicator with E5 and a note of each occurrence.
Evidence: Gree mini split air conditioner installation and owner's manual, Vireo Plus Ultra
Air inlets and outlets clear
- Who:
- you.
- How:
- without opening anything, check no objects, curtains or dirt block the grilles of the indoor or outdoor unit.
- Result that matters:
- that air enters and leaves freely, as Gree's troubleshooting asks.
- If there were blockages:
- remove them and try again.
- If everything was clear:
- the cause lies in the supply or internal components.
- Evidence to keep:
- a photo of the grilles before and after.
Evidence: Gree Sapphire installation, service and troubleshooting manual, SAP18HP230V1AH/AO and SAP24HP230V1AH/AO
Supply voltage and components
- Who:
- an air conditioning technician.
- How:
- measures supply voltage against the rated value and, if correct, cleans the heat exchangers and checks fan, board and compressor.
- Result that matters:
- Gree allows up to 10 % variation from rated voltage.
- If the voltage is outside that margin:
- a supply problem is confirmed.
- If voltage is correct:
- Gree's order continues with cleaning and components.
- Evidence to keep:
- a job sheet with the measured voltage and the component checked.
Live mains measurement and compressor testing: technician or licensed electrician only.
Evidence: Gree Sapphire installation, service and troubleshooting manual, SAP18HP230V1AH/AO and SAP24HP230V1AH/AO
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- HVAC
- Brand
- Gree
- Product type
- Air conditioner
Known code variants
- aire acondicionado Daikin E5
- caldera Junkers E5
- Cerapur E5
- Cerapur Excellence Compact E5
- climatisation Daikin E5
- climatizzatore Daikin E5
- code erreur E5 Daikin
- codice E5 Daikin
- código E5 Daikin
- Daikin AC E5
- Daikin E5
- Daikin error E5
- Daikin Fehler E5
- Daikin Fehlercode E5
- E05
- E 5
- E5 218
- E5 332
- error E5 aire Samsung
- error E5 Daikin
- Error E5 Junkers
- error E5 lavavajillas Smeg
- errore E5 Daikin
- Gree E5
- Junkers boiler E5
- Junkers E5
- Klimaanlage Daikin E5
- lavavajillas Smeg no carga agua E5
- panne E5 Daikin
- Samsung AC E5 error
- Samsung E5
- Smeg dishwasher E5
- Smeg dishwasher error E5
- Smeg dishwasher not filling E5
- Smeg lavavajillas E5
- Smeg LVFABCR3 E5
What it means
Gree defines E5 as overcurrent protection and cites unstable supply voltage, supply voltage too low with a high load, or a dirty evaporator as causes. Its service manual asks to check the voltage stays within 10 % of the rated voltage on the nameplate, to clean the indoor and outdoor heat exchangers and remove blockages from air inlets and outlets, and then to check the fan, board and compressor. The code does not say which cause applies: measuring voltage and current is technician work.
Warnings and stop conditions
- Highsource verified
Gree says not to repair or modify the unit yourself. If you notice a burning smell, abnormal noise, a hot power cord or a tripping breaker, switch off, disconnect power and call a qualified professional.
Evidence: Gree mini split air conditioner installation and owner's manual, Vireo Plus Ultra
Symptoms and causes
Probable causes · in order
- Unstable or low supply voltagePossible
Gree cites it together with a high load; it is confirmed by measuring voltage against the nameplate.
Evidence: Gree Sapphire installation, service and troubleshooting manual, SAP18HP230V1AH/AO and SAP24HP230V1AH/AO · Gree mini split air conditioner installation and owner's manual, Vireo Plus Ultra
- Dirty heat exchanger or blocked airPossible
Gree cites a dirty evaporator and asks for inlet and outlet blockages to be removed; this is the part you can see.
Evidence: Gree Sapphire installation, service and troubleshooting manual, SAP18HP230V1AH/AO and SAP24HP230V1AH/AO · Gree mini split air conditioner installation and owner's manual, Vireo Plus Ultra
- Fan, board or compressorPossible
Gree checks them after voltage and cleaning; only the technician can test them.
Evidence: Gree Sapphire installation, service and troubleshooting manual, SAP18HP230V1AH/AO and SAP24HP230V1AH/AO · Gree mini split air conditioner installation and owner's manual, Vireo Plus Ultra
Virtual technician
Does E5 still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
Gree Comfort · 2022 · manual
- 2
Gree mini split air conditioner installation and owner's manual, Vireo Plus Ultra
Gree Comfort · 2019 · manual
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