Vertiv Liebert MCV330 - 11.2 Condenser Cleaning - Standard Coil

Alarm ID Meaning Possible Cause Handling Method
(1-4) 00 EC Fan high link current
1. EC Fan is locked.
2. EC Fan is damaged.
For cause 1, check if EC Fan is locked.
For cause 2, replace EC Fan.
(1-4) 01 EC Fan drive error EC Fan is damaged. Replace EC Fan.
(1-4) 02
EC Fan earth to ground
fault
EC Fan is damaged. Replace EC Fan.
(1-4) 03
EC Fan electronics heat
sink thermal overload
1. EC Fan is locked.
2. EC Fan is damaged.
3. Ambient temperature is too
high.
For cause 1, check if EC Fan is locked.
For cause 2, replace EC Fan.
For cause 3, check ambient temperature.
(1-4) 04 EC Fan Hall failure EC Fan is damaged. Replace EC Fan.
(1-4) 05 EC Fan IGBT failure EC Fan is damaged. Replace EC Fan.
(1-4) 06 EC Fan line fault Power supply abnormal Check power supply.
(1-4) 07 EC Fan motor locked Motor is locked. Check if EC Fan is locked.
(1-4) 08
EC Fan motor thermal
overload
1. EC Fan is locked.
2. EC Fan is damaged.
3. Ambient temperature is too
high.
For cause 1, check if EC Fan is locked.
For cause 2, replace EC Fan.
For cause 3, check ambient temperature.
(1-4) 09 EC Fan phase failure alarm Phase failure Check power supply.
(1-4) 10
EC Fan specific
uncategorized alarm
detected
Internal EC Fan issue
Reboot condenser if fans not running.
If alarm persists and fans not running, replace fan.
(1-4) 11
EC Fan specific
uncategorized warning
detected
(1-4) 12
EC Fan electronics high
temperature condition
1. EC Fan is locked.
2. EC Fan is damaged.
3. Ambient temperature is too
high.
For cause 1, check if EC Fan is locked.
For cause 2, replace EC Fan.
For cause 3, check ambient temperature.
(1-4) 13 EC Fan high link voltage
1. EC Fan input power supply
high voltage
2. EC Fan is damaged.
For cause 1, measure power supply voltage
and check if the voltage is normal.
For cause 2, replace EC Fan.
(1-4) 14 EC Fan low link voltage
1. EC Fan input power supply low
voltage
2. EC Fan detection error
Table 10.4 EC Fan Alarm Information
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Vertiv™ Liebert® MCV Installer/User Guide