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APC Smart UPS 1500 fan never turns off

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.

BillP
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APC Smart UPS 1500 fan never turns off

This question was originally posted by Dâniel on APC forums on 12/26/2012


I bought this UPS:

http://www.apc.com/resource/include/techspec_index.cfm?base_sku=SUA1500

And I noticed that the fan is always on (low rotation) even if I turn it off. I searched the forum for some similar issues:

Referenced content removed

But this thread is too old. I want to know if this issue is common on brand new units bought in 2012. Here it's the data from the UPS:

battery.charge: 100
battery.charge.low: 10
battery.charge.warning: 50
battery.mfr.date: 2012/03/05
battery.runtime: 5460
battery.runtime.low: 120
battery.temperature: 29.7
battery.type: PbAc
battery.voltage: 27.4
battery.voltage.nominal: 24.0
device.mfr: American Power Conversion
device.model: Smart-UPS 1500
device.serial: AS1210230036
device.type: ups
driver.name: usbhid-ups
driver.parameter.pollfreq: 30
driver.parameter.pollinterval: 2
driver.parameter.port: auto
driver.version: 2.6.3
driver.version.data: APC HID 0.95
driver.version.internal: 0.35
input.sensitivity: medium
input.transfer.high: 127
input.transfer.low: 106
input.voltage: 118.8
output.current: 1.23
output.frequency: 60.0
output.voltage: 118.8
output.voltage.nominal: 120.0
ups.beeper.status: disabled
ups.delay.shutdown: 20
ups.delay.start: 30
ups.firmware: 653.19.D
ups.firmware.aux: 11.03
ups.load: 13.6
ups.mfr: American Power Conversion
ups.mfr.date: 2012/03/05
ups.model: Smart-UPS 1500
ups.productid: 0002
ups.serial: AS1210230036
ups.status: OL
ups.test.result: No test initiated
ups.timer.reboot: -1
ups.timer.shutdown: -1
ups.timer.start: -1
ups.vendorid: 051d

Any hints to disable this behaviour? I want the fan to turn on ONLY when needed (when using the battery) and I want it to turn off when I turn it off (for now I have to unplug from the wall and "braindead" it, pressing the power off button until it turns completely off the fan). Thanks.