An Indoor Fan Fails To Start - Huawei NetCol5000-A020 User Manual

NetCol5000-A020 Air Cooled In-row Precision Air
Conditioner
User Manual
Step 2 Check whether the compressor starts and stops continuously or the compressors has a dull
noise.
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Step 3 Contact Huawei technical support.
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5.5.4 An Indoor Fan Fails to Start

Symptom
An indoor fan fails to start.
Possible Causes
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Procedure
Step 1 Check whether there are indoor fan fault alarms.
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Step 2 Check for any startup requirement for fans on the LCD.
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Step 3 Check whether the circuit breakers are switched on.
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Step 4 Check whether the indoor fan power supply is normal.
Issue 01 (2014-06-30)
If the compressor starts and stops continuously, deal with it by referring to Comp HP
switch, and then check whether the fault is rectified.
− If yes, troubleshooting is complete.
− If no, go to Step 3.
If the compressors has a dull noise, go to
If the compressor does not start and stop continuously, go to
Indoor fan fault alarms exist.
An indoor fan does not need to start.
Either the general circuit breaker or the indoor fan circuit breaker is not switched on.
Power to the indoor fan is abnormal.
If yes, deal with it by referring to
is rectified.
− If yes, troubleshooting is complete.
− If no, go to Step 2.
If yes, go to Step 2.
Tap Running > Status to check the fan control, if it is 0%, meaning the indoor fans do
not need to start, it is not faulty, troubleshooting is complete.
If the fan control is greater than 0%, meaning the indoor fans need to start, go to
If no, switch on the circuits and then check whether the fault is rectified.
− If yes, troubleshooting is complete.
− If no, go to Step 4.
If no, go to Step 4.
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5 System Operation and Maintenance
Step 3.
5.4 Alarm Reference and then check whether the fault
Step 3.
Step 3.
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