1: The electric heating constant temperature incubator is not heated but the temperature controller shows normal. This fault is mostly caused by heating damage, and it can be replaced. When the fault is repaired, the circulating fan should be ensured to operate normally. If the circulating fan does not run, it will cause no heating, but the temperature inside the box will have a temperature rise of about 5 °C. When the door is opened, there will be a small amount of burnt smell. It is easier to judge whether the heating tube or the circulating fan is faulty.

2: The electric heating constant temperature incubator is not heated and accompanied by an alarm sound, but the circulating fan works normally, and the temperature controller displays “———”, the fault is that the sensor is damaged and can be replaced.

3: The temperature in the working chamber of the electrothermal constant temperature incubator is not uniform. This phenomenon occurs. It should be checked whether the contents of the box block the air outlet of the circulating air duct or the air inlet, or there are too many items in the box.

4: The electric heating constant temperature incubator turns on the power switch and trips. In such cases, the heating tube can be directly considered, and the fuse holder damage can also occur, but it is rare.

5: After the electric heating constant temperature incubator is turned on, the power switch is turned on and there is no display. Most of the fuses are blown and replaced. If the fuse is intact, replace the power switch directly.

6: When the electric heating incubator turns on the power switch, the fuse is blown, and the fault is short-circuited to the wire near the heating pipe.

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