Electrolux Dryer Error Code H1/B1

The H1/B1 code means the dryer's control board has detected that the incoming power supply frequency is outside the expected operating range. Electrolux dryers are designed to run on a stable AC frequency, typically 60 Hz. When the board senses a deviation from this range, it logs this fault to protect the appliance. The issue can originate from the household electrical supply or from the control board itself.

It is not advisable to continue operating the dryer while this fault is active. The code indicates the control board has detected abnormal power conditions, and running the appliance under those conditions could cause further damage to electronic components. Resolve the underlying power supply issue or have the control board evaluated before resuming normal use.

Repair costs vary depending on the cause. If the issue is a power supply problem, there may be minimal or no parts cost, though an electrician may be needed to evaluate the household wiring. If the main control board requires replacement, parts and labor combined typically range from $150 to $400 or more depending on the specific board and your location.

Some causes of this code are addressable without professional help, such as identifying whether a generator or unstable power source is causing the problem. However, diagnosing whether the control board is at fault requires performing the specific test procedure referenced in the fault data, which involves electrical testing that may be beyond a typical DIY repair. If the board needs replacement, a technician familiar with the model is recommended.

A power reset may temporarily clear the code if the power supply instability was a brief event that has since resolved. However, if the underlying cause is still present, the code will return when the dryer powers back on and the control board resumes frequency monitoring. A reset alone is not a fix and should not be relied on without addressing the root cause.