H5
Electrolux Split AC
Severity: ModerateWhat Does This Error Mean?
H5 means the Intelligent Power Module (IPM) has shut down to protect itself. The IPM controls the compressor motor — it trips when overloaded or overheated. Clean the outdoor unit and let the AC rest before restarting.
Affected Models
- Electrolux EXH09HL1W
- Electrolux EXH12HL1W
- Electrolux ESV09CRK
- Electrolux EWHI09
- Electrolux Inverter Split System
Common Causes
- Dirty or blocked outdoor condenser coils restricting airflow
- Very high ambient outdoor temperature overloading the IPM
- Failing or worn IPM board component
- Clogged indoor air filter reducing overall system efficiency
- Low refrigerant causing the compressor to work harder than normal
How to Fix It
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Turn off the AC at the remote and switch off the circuit breaker.
Cutting power fully lets the IPM cool down and resets the protection circuit.
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Go outside and inspect the outdoor unit for dirt, leaves, or blocked vents.
Blocked coils trap heat around the IPM, which is the most common cause of H5.
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Use a garden hose or soft brush to gently clean the outdoor condenser coils.
Spray from inside-out if possible to push dirt away from the coil fins.
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Check and clean the indoor air filter — a clogged filter adds load to the system.
Rinse the filter under water, let it dry, and reinsert before restarting.
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Wait at least 30 minutes, then restore power and restart the AC.
If H5 clears and the AC runs normally, the overheating was the likely cause.
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If H5 reappears quickly, call a licensed HVAC technician to test the IPM board.
A faulty IPM board cannot be repaired at home — it must be replaced by a professional.
When to Call a Professional
Call a technician if H5 returns after cleaning and a 30-minute rest. A failing IPM board requires specialised diagnostic tools and component replacement. Do not keep restarting the unit — repeated trips can permanently damage the IPM.
Frequently Asked Questions
Can I reset the H5 error myself?
Yes — turn off the AC, switch off the breaker, and wait 30 minutes. If the outdoor unit was just dirty or the day was unusually hot, it will clear. If H5 comes back within an hour of restarting, a technician is needed.
Is H5 dangerous to ignore?
Do not keep restarting the AC when H5 keeps appearing. Repeated trips stress the IPM board and can cause permanent damage. Leave the unit off and call a technician if cleaning does not solve it.
How much does it cost to replace an IPM board in an Electrolux AC?
IPM board replacement typically costs $150–$400 depending on the model and labour rates. In older units, a new board may cost close to half the price of a new AC. Get a quote before committing — sometimes replacement is the better option.