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Error code reference

LG Washer Error Code Hr

Heater relay error

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What the Hr error code actually means

Your LG washer has detected a problem with the internal heating system, specifically the heater circuit or the sensor that monitors its temperature. The machine may have shut itself off as a safety measure to prevent overheating or fire. You should stop using the washer until the issue is diagnosed and repaired.

Diagnostic procedure

The full Hr procedure

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MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check for disconnected wires in the washing heater; replace if faulty.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of Hr

Ranked by how often they cause this code
  1. 1Disconnected or broken heater wiring
  2. 2Short-circuited washing heater element
  3. 3Faulty tub heater temperature sensor
  4. 4Water level sensor malfunction triggering safety shutoff
  5. 5Dry heater red temperature sensor or steam function fault

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Questions people ask about Hr

What does Hr mean on a LG washer?
The Hr code on an LG washer indicates a heater relay error. It can be caused by a short circuit or disconnected wire in the washing heater, a faulty tub heater temperature sensor, or a safety shutoff triggered when the water level sensor detects no water and the temperature sensor reads 100 to 105 degrees Celsius. On models with steam functions, a fault in the steam heater or its red temperature sensor can also trigger this code.
Is it safe to keep using my LG washer when the Hr code appears?
No, you should not continue using the washer while the Hr code is active. This fault involves the heating circuit and can indicate a short circuit, a sensor failure, or a condition where the heater may be running without adequate water. The machine may have already shut off input power automatically as a safety measure, and using it before the fault is resolved could risk further damage or a fire hazard.
How much does it cost to repair an Hr error on an LG washer?
Repair costs vary depending on which component has failed. Replacing a heater wiring harness or temperature sensor typically falls in a lower cost range, while replacing the full heater assembly or steam generator components will cost more. Including professional labor, total repair costs can range from around 100 dollars to over 300 dollars depending on the specific fault, the model, and local labor rates.
Can I fix the Hr error on my LG washer myself?
Some causes of the Hr code, such as a loose or disconnected wire at the heater, can be addressed by a knowledgeable DIYer comfortable working with appliance wiring. However, testing heater element resistance, checking relay contacts, and diagnosing sensor faults requires a multimeter and familiarity with electrical components. If you are not confident working with internal wiring and heating circuits, a qualified appliance technician should perform the repair.
Will resetting my LG washer clear the Hr error code?
Resetting the washer by unplugging it for a few minutes may temporarily clear the displayed code, but it will not resolve the underlying fault. If the heater, wiring, or sensor that triggered the Hr code has not been repaired or replaced, the error will return when the machine attempts to heat water again. A proper diagnosis and repair of the faulty component is required to permanently clear this code.

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