日立变频器常见的故障有：E01.OC、E5.OL、E06、OLBRD、E07、Over.v、E09under.v、E.14、E23.6、E24、E30、无显示等，具有维修速度快价格优惠等特点.

日立变频器:J300-2600HFPE4，J300-2200HFPE4，J300-1600HFPE4，J300-1600HF5，L300P-1320HFE， L300P-1100HFE， L300P-900HFE，L300P-750HFE，L300P-550HFE， L300P-450HFE， L300P-370HFE， L300P-300HFE，L300P-220HFE，L300P-185HFE， L300P-150HFE ， L300P-110HFE， L100-075HFE，L100-055HFE，L100-040HFE，L100-022HFE，L100-015HFE， L100-007HFE，L100-004HFE，L100-022NFE ，L100-015NFE，L100-007NFE，L100-004NFE， L100-002NFE，SJ300-1320HFE，SJ300-1100HFE，SJ300-900HFE，SJ300-750HFE，SJ300-550HFE ， SJ300-450HFE，SJ300-370HFE，SJ300-300HFE，SJ300-220HFE，SJ300-185HFE，SJ300-150HFE ， SJ300-110HFE，SJ300-075HFE，SJ300-055HFE，SJ300-040HFE，SJ300-022HFE，SJ300-015HFE ， SJ300-007HFE，SJ100-075HFE，SJ100-055HFE，SJ100-040HFE，SJ100-022HFE，SJ100-015HFE ， SJ100-007HFE，SJ100-004HFE，SJ100-022NFE，SJ100-015NFE， SJ100-007NFE，SJ100-004NFE ， SJ100-002NFE，J300，L300P，L100，SJ300,