Written by
Nora Halvorsen Appliance Care EditorPublished October 26, 2026
VERIFIED
Error codeEH1 / H1 / B1
ApplianceDryer
The dryer is reporting that its power supply frequency is out of range whenever EH1, H1 or B1 appears. Tech sheet A11199902, listed with model EFMC627UIW, documents it for current-generation machines.
What the sheet puts behind it
A power supply problem.
An incorrect MCF.
A failed main board.
Safety
Owners are given no checks. While the code shows, do not run the dryer; if you doubt the supply, keep it unplugged. Supply and board work is for a technician.
Whenever EH1 returns, call (415) 449-0036 about your dryer in San Francisco or the Bay Area. Keep the code, the model number and your attempts in view. Electrolux dryer repair is the service overview.
Model compatibility: Electrolux reuses codes across series and model years, so EH1 / H1 / B1 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
Power supply frequency out of range.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your Electrolux appliance?
Book a specialist visit for a clear estimate and approval before any repair.
You submit a request with your appliance model and symptom, we confirm an appointment window, and a technician performs an on-site diagnosis. You then receive a clear estimate and decide whether to proceed before any repair begins.
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Replacement parts are selected for the exact model and confirmed with you before ordering or installation.
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