How to troubleshoot daily malfunctions of air electric heaters

How to troubleshoot daily malfunctions of air electric heaters

1, Stop running

Check the power supply of the air heater to ensure that there is no problem with the circuit, whether the three-phase electricity is normal or there is a missing phase. If there is a missing phase, promptly find an electrician to repair it; Whether the fuse is intact and whether the equipment itself is burnt out; Open the protective cover of the air heater and use a multimeter to check if a single electric heating element is open circuit.

2, Temperature gauge display is abnormal

When the temperature gauge data of the air electric heater shows abnormalities, we first need to check whether the air switch has been closed, and then check whether the control circuit is intact; After power on, the temperature of the heater is moderate and cannot rise. To investigate the cause of the malfunction, first check if the fuse is intact. If there is no problem, check if the heater itself is damaged; When the temperature is often below 0 ℃ in winter, if no measures are taken to place it, the water in the heater can easily freeze, affecting normal operation and potentially causing pipeline explosions. The reasons for the frost cracking of surface coolers may vary in different regions. In areas with milder temperatures, it may be due to the lack of a preheating plate in winter and the presence of water inside the surface cooler. Freeze after inhaling cold outdoor air. At this time, it is important to pay attention to draining the water from the meter cooler during winter when not in use. For example, in the winter of the southern region, there may be frost cracks in the surface cooler. However, due to the extremely low temperature of a certain weather, the return air is not well mixed with the fresh air, causing the outdoor cold air to blow directly onto the surface cooler. We can set up a mixing valve to fully mix the fresh air with the return air; Three phase imbalance, we can first check if the incoming voltage of the three phases is missing, or open the protective cover of the gas pipeline heater and use a multimeter to check if it is caused by a broken circuit of a certain electric heating element.

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