ಏಕೆ ಬಾಕ್ಸ್ ಮಾದರಿಯ ಪ್ರತಿರೋಧ ಕುಲುಮೆ heating up slowly?

1. The heating element is aging, replace with a new heating element.

2. Whether the meter is a programmed heating meter, there is an item of set power, and the heating time can be adjusted.

3. Insufficient voltage.