What does the CH on the dashboard mean?
2 Answers
The CH on the dashboard refers to the coolant temperature gauge. The temperature range is from C to H, where C represents 60 degrees. Once the needle reaches C, it indicates the coolant temperature has reached 60 degrees. H represents 110 degrees, and the temperature can be estimated based on the span from 60 to 110 degrees. The reasons for excessively high coolant temperature are: 1. Insufficient coolant due to low fluid levels or leaks; 2. Abnormal cooling caused by a malfunctioning radiator fan; 3. Abnormal circulation cooling due to a faulty water pump; 4. Engine issues or cooling system failures. The reasons for excessively low coolant temperature are: 1. Damaged thermostat; 2. Continuously running radiator fan.
I've been driving on the road for over twenty years, and I always pay extra attention when the 'CH' symbol lights up on the dashboard. This usually indicates a problem with the charging system, meaning the alternator can't charge the battery. I remember once during a long-distance trip when this light came on, I immediately pulled over to check and found a crack in the alternator belt. This situation is particularly dangerous because the car might suddenly stall while driving, and even the steering wheel could lock up. I recommend turning off power-consuming devices like the air conditioner and stereo immediately and finding a nearby repair shop. Don't push through to your destination—I have a friend who ignored it and ended up calling a tow truck on the highway at night, costing over 800 just for the rescue fee.
