To Next PageTo Next PageWhy is the Maruson ULT-1K UPS beeping twice every second?
The Maruson UPS is beeping twice every second because it is overloaded. To resolve this, remove some of the devices connected to the UPS. If the UPS is locked in Bypass mode after repetitive overloads, first remove some of the devices connected to the UPS, then shut down the UPS and restart it.
What to do if fault code 43 is shown on Maruson ULT-1K?
If fault code 43 is displayed on your Maruson UPS, it means the UPS shut down automatically due to an overload at the output. Remove some of the devices connected to the UPS and restart it.
What to do if fault code 14 is shown on Maruson UPS?
If fault code 14 is displayed on your Maruson UPS, it indicates that the UPS shut down automatically because a short circuit occurred at the UPS output. Check the output wiring and the devices connected to the UPS to see if any are causing a short circuit.
Why is battery backup time shorter than nominal value in Maruson UPS?
The battery backup time might be shorter than expected for two reasons: the batteries may not be fully charged or the batteries are defective. Charge the batteries for at least 5 hours and then check capacity. If the problem still persists, consult your dealer.
What to do if Maruson ULT-1K shows fault codes 01, 02, 03, 04, 11, 12, 13, 41 and 45?
If your Maruson UPS displays fault codes 01, 02, 03, 04, 11, 12, 13, 41 and 45, it indicates an internal fault. Contact your dealer.
How to fix Maruson ULT-1K when LCD is flashing and alarm is sounding?
If the icon is flashing on the LCD display and the alarm is sounding every second, it means the external or internal battery is incorrectly connected. Check if all batteries are connected well.
How to troubleshoot Maruson UPS with no indication and alarm?
If your Maruson UPS has no display or alarm, even when the mains power is normal, it could be due to these reasons: The AC input power is not connected well. Check if the input power cord is firmly connected to the mains. Alternatively, the AC input may be connected to the UPS output. Ensure you plug the AC input power cord into the AC input correctly.
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