Chapter 4. Maintenance and troubleshooting
18 Shenzhen INVT Network Technology Co., Ltd.
4.1.4 Fan frequency converter
Check if the fan inverter is working properly. If it is not normal, please repair or replace it in
time. See Chapter 3, Fan Inverter Setting and Use and other related contents for the inspection and
repair method.
4.1.5 Pressure sensors
If the pressure sensor fails, replace it with a voltage type pressure sensor that meets the
requirements for use.
Note
1) The outdoor units are shipped with voltage type pressure sensors, so we suggest you to
buy them directly from our company.
2) If users choose other voltage pressure sensors, the selection must meet the requirements
of use.
4.2 Troubleshooting
H type inverter, when the outdoor unit is malfunctioning, please refer to the fault code
descriptions and solutions in Table 4-1 to deal with it, if you cannot troubleshoot, please seek
technical support from our company.
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