Error code · Microwave

Samsung Microwave Code E-46: Primary Circuit Open

Samsung US microwaves show E-46 for a primary open error. The listing gives no more than that name. We read it as the control finding the main power-side circuit open when it called for it to…

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Code: E-46
Appliance: Microwave
Brand: Samsung
Warranty: 30-day workmanship

What E-46 means

Samsung US microwaves show E-46 for a primary open error. The listing gives no more than that name. We read it as the control finding the main power-side circuit open when it called for it to be closed, so the oven cannot start cooking. You will see the code and an oven that does not heat, though the display and clock may still light up.

Common causes of E-46

A primary-side circuit that reads as open
A door switch or relay that did not close in sequence
A loose connection between the control and the power circuit

✓ One safe check you can try

1. Check that the door is shut firmly and the latch is clean. 2. Take power off at the plug or breaker and let any moisture dry. 3. After waiting 60 seconds, turn the power on. 4. Try a short cook with a cup of water. 5. An E-46 that returns calls for a request for service.

! Why to stop there

The name does not say which primary circuit is open, so we start from the door switches and work toward the control.
Parts on the power side of a microwave need careful testing and should not be touched by owners.
You see the price in writing before we begin.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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Other Microwave codes

E-61Samsung Microwave Code E-61: Humidity Sensor Open E-62Samsung Microwave Code E-62: Humidity Sensor Shorted E-63Samsung Microwave Code E-63: Humidity Sensor Timed Out E-71Samsung Microwave Code E-71: Steam Sensor Open E-72Samsung Microwave Code E-72: Steam Sensor Shorted E-81Samsung Microwave Code E-81: Control Link Open E-82Samsung Microwave Code E-82: Control Link Shorted E-83Samsung Microwave Code E-83: Control Link Unreliable

E-46E-46 questions

What does primary mean here?

It refers to the main power side of the oven, ahead of the high-voltage section. We confirm by testing which part of that path is open.

Can the door cause E-46?

It can, because the door switches sit in that chain. A clean, firmly closed door is the first check, and the rest needs testing by us.

Is it safe to retry a few times?

A retry or two after the reset is fine. Beyond that, leave the oven off, since repeated attempts on a power-side circuit achieve nothing and only wear it.

Book a visit

Still seeing E-46?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 561-5298