2. Regular maintenance plan
(1) Daily inspection (daily)
Appearance: No abnormal noise, odor, or vibration;
Display: No alarm code, stable current/frequency;
Heat dissipation: The fan is running normally and there is no dust blockage.
(2) Regular maintenance (by cycle)
Maintenance project cycle operation requirements
Check the blade wear of the cooling fan after running for 20000 hours and replace it with a fan of the same model
Measure the capacitance of the main circuit capacitor after 5-7 years of operation. If it is lower than 80% of the initial value, it needs to be replaced
Check the torque of the main circuit terminals every 6 months to prevent looseness and heating during terminal tightening
Clean every 3 months by blowing compressed air to remove dust from the radiator (operated after power outage)
3. Maintain monitoring function
Parameters U4-01~U4-04: Display cooling fan, main capacitor IGBT、 The remaining lifespan (percentage) of the control circuit capacitor should be replaced in advance if it is less than 20%.

Email:wang@kongjiangauto.com