Question about Samsung SMH7178STD Microwave Oven
We keep getting the E4 error message and was told the thermistor could be greasy. Can the thermistor be cleaned or is there some way to clear the error message?
That may be it. In some cases you can clean them, but if it has become brittle, it may snap. But it's worth a try.
First of all, I'd try a cold reset by unplugging the oven for afew minutes then trying again. If that doesn't clear the error, it's probably the thermistor.
The oven would have to be removed from the wall so the outer wrapper can be removed, then you can remove the sensor and attempt to clean it.A gentle scraping with the toothpick might work, or gently soaking it in hot water. Just be sure it's dry when reinstalled.
If needed, you should be able to order a new thermistor here:
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Posted on Mar 16, 2008
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Posted on Jan 02, 2017
Tips for a great answer:
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Short circuit on
thermistor or Time-out drain- Check filter for blockages then book
a dishwasher repair if the problem persists.
I hope that helps.
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Some models are equipped with a sensor that can automatically adjust the oven's heating time based on the amount of steam in the oven. If your microwave is displaying E1, E4, or E5, there may be an issue with the gas sensor. For an E1 error, press the Cancel button and check on the food.
If the message is either ERROR or E-6, it indicates a mechanical fault.
For all error indications, try unplugging the microwave from the outlet for at least ten minutes and then plug it back in. If the error persists, the microwave may require service. Please use our ASC Locater to find your nearest Authorzied Service Center
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