Electrolux Dryer Error Code H2/B2

The H2/B2 code means the dryer's control board has detected that the incoming power supply voltage is too high, exceeding the acceptable operating range. This is a power supply fault, not a mechanical or heating component failure. The dryer triggers this code to protect itself from overvoltage damage. Diagnosis should begin by measuring the actual line voltage at the outlet or terminal block.

You should not continue operating the dryer while the H2/B2 error is active. Persistently high voltage can damage the control board, motor, and heating components over time. The dryer's control system displays this fault specifically to alert you that operating conditions are unsafe. Resolve the power supply issue before resuming normal use.

Repair costs vary significantly depending on the root cause. If the issue is a faulty outlet or loose wiring connection, electrician service calls typically range from around $75 to $200. If the dryer's control board requires replacement, parts and labor combined can range from approximately $150 to $400 or more depending on the model and local labor rates.

Some causes, such as a tripped breaker or a slightly elevated utility voltage, may be straightforward to identify, but working with 240V wiring carries serious safety risks. Checking the outlet voltage with a voltmeter is a reasonable first step for a knowledgeable DIYer. However, any work involving the home's wiring, panel, or internal dryer wiring should be performed by a qualified technician or electrician.

Resetting the dryer by unplugging it or cycling the breaker may temporarily clear the error display, but the fault will return if the underlying overvoltage condition has not been corrected. A reset does not fix the root cause. The incoming line voltage must be measured and any wiring or supply issues resolved before the code will stay cleared.