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Constant Clicking

APC UPS for Home and Office Forum

Schneider Electric support forum for our APC offers including Home Office UPS, Surge Protectors, UTS, software and services and associated products designed to share knowledge, installation, and configuration.

Solved
TucsonCyclist_apc
Cadet
0 Likes
1
71

Constant Clicking

This was originally posted on APC forums on 1/28/2012


I have an ES-750 that has worked flawless for 2 years. I ordered another for my work station. I have had it for two days. All I have plugged in is a Lenovo laptop and it clicks all the time. I mean every 5 seconds, all day. The laptop is plugged into master since I plan on plugging my second monitor and printers in to "controlled by master" but haven't done it yet. I haven't installed the software and it is not connected to the printer other than electric.

What is with the clicking?

Message was edited by: TucsonCyclist


Accepted Solutions
BillP
Administrator Administrator
Administrator
0 Likes
0
71

Re: Constant Clicking

This reply was originally posted by Jonathan on APC forums on 2/2/2012


Hello Marc,

Before anything else, I wanted to be sure that you have connected the battery terminals on your UPS. Next, I would like to know if the Green LED is lit up on the button where it says Master. The button/LED is in parallel with the power button, if this is lit up it means that the Master/Green functionality of the UPS is enabled. If this is enabled, once the UPS has detected that power/wattage is being drawn on the Master outlet it would then turn on/enable the Controlled by Master outlet. If the wattage is too small it disables/turns off the Controlled by Master outlet, this is all being done by the relay inside the unit.

I wanted to be sure that it is not the relay that you are hearing, kindly turn off the Master feature first by pressing and holding the Master button. The LED would turn off indicating that you have successfully disabled the feature.

See Answer In Context

1 Reply 1
BillP
Administrator Administrator
Administrator
0 Likes
0
72

Re: Constant Clicking

This reply was originally posted by Jonathan on APC forums on 2/2/2012


Hello Marc,

Before anything else, I wanted to be sure that you have connected the battery terminals on your UPS. Next, I would like to know if the Green LED is lit up on the button where it says Master. The button/LED is in parallel with the power button, if this is lit up it means that the Master/Green functionality of the UPS is enabled. If this is enabled, once the UPS has detected that power/wattage is being drawn on the Master outlet it would then turn on/enable the Controlled by Master outlet. If the wattage is too small it disables/turns off the Controlled by Master outlet, this is all being done by the relay inside the unit.

I wanted to be sure that it is not the relay that you are hearing, kindly turn off the Master feature first by pressing and holding the Master button. The LED would turn off indicating that you have successfully disabled the feature.