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2.5 Fault messages and quick troubleshooting
All alarms contained in Y11PAR2 version are listed in the following table.
ALARM
POSSIBLE CAUSE
A1 BYPASS FAILURE
Bypass system failure. Bypass elements may be broken.
A2 INVERTER FAILURE
Inverter digital start system is failed. Call the service.
A3 3 OVERTEMP
Overtemperature in UPS repeated 3 times in 30 min.
1) Check for UPS air inlets and outlets for any blocking by dust etc.
2) Fan failure
3) Bad UPS location
4) Check for Overload
A4 OUT FAILURE
UPS output voltage is out of tolerance at 3 times in 30 min. Call the service.
A5 BATT AUT END
Batteries are completely discharge wait for restoration of electric power
input.This message occurs only at line failure
A6 CHARGER FAULT
Rectifier could not produce DC bus voltage.
A7 BATTERY LOW
Battery voltage is low.
1) UPS operation for a long time when line out
2) Charger system failure
A8 OUTPUT HIGH
Inverter output voltage is over than max. tolerated value.
Inverter is stopped
1) Inverter failure
A9 OVERLOAD
UPS loaded over than max. %100 load level.
A10 LINE FAILURE
Line failure.
1) Maybe line out
2) Check 3 input phases.
3) Check UPS input fuses.
A11 HIGH TEMPER
Over temperature. (inverter or rectifier section)
1) Overload for inverter
2) Over temperature
3) Fan failure or dirty air inlets
4) Bad UPS settling. There is not enough ventilation area.
A12 OVERCURRENT
Inverter output system failure
1) Internal overcurrent
2) Short circuit.
3) UPS failure. Call the service.
A13 OUTPUT LOW
Inverter output voltage is below the min tolerated value.
Inverter is stopped.
A14 BATTERY HIGH
Battery voltage is over than max. tolerated value.
If the mains is off the tolerance when switching into bypass. The UPS turns
off the output voltage and waits until the inverter starts again to prevent the
load.
A16 BYP INPUT BAD
During transfer to bypass, Voltage or frequency value of bypass source is
incorrect and the UPS turns off the load power.
During normal (inverter) operation some times you can see this message.
During bypass if the bypass protection option is on, and if the bypass
source is out of tolerance UPS turns off the static bypass for load
protection.
A19 REPLACE BATT
Battery test aborted. And batteries are not OKAY
UPS gives beep sound within 15 sec
You can clear this message by pressing 3 seconds to ENTER key
1) Rectifier fault
2) Damaged battery cells
3) POOR battery connections
A20 BOOST CHARGE
Boost charge is active for 10 hours. At the end of this time UPS stops the
boost charge.
UPS gives beep sound every 15 sec
