Trane 09CH-FIXED-A1, Руководство по обслуживанию

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3. Maintenance
3.1 Failure code
Code Reason Remark
E1
IDU Room Temperature sensor failure.
（
IDU RT failure
）
IDU sensor and PCB.
E2
IDU Coil temperature sensor failure.
（
IDU
IPT failure
）
IDU sensor and PCB.
E4 Gas not enough Please check the pressure in cooling
E5 System protection For the high/low pressure valve model
E6
IDU PG Fan motor / DC fan motor works
abnormal
（
IDU failure
）
Fan motor, fan blade and PCB.
P7 Overheating protection on Heating mode. Please check the troubleshooting for detail.
Note: Remote controller FAILURE CODE Querying function
As shown in the failure codes, some of the codes (Fb~bj) need to press remote control for inspection.
While unit on operation, press the ECO button 8 times with 8 seconds, the buzzer BIBI 2 times, you can
inspect the special failure code as Fb ~Fn, bj etc.
Air Conditioner Service Manual
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