[quote=“khurram4m, post:8, topic:19620”]
Exactly , But how can you clean it every 3 months in first year of purchase it will void its warraty
(Though the so called warranty has no worth in Pakistan for domestic User )
cleaning should not be done with a water hose pipe,,, a simple air blower will clean 90% of dirt without even opening the unit.. the best direction is to blow the exhausts fans and the power unit thoroughly, because as ijaz said, these areas accumulate most dust,.. also i find that the dirty fans also produce the most noise.. cleaning with unit case cover wont void your warranty, untill you rip off some seals or sticker which clearly say warranty void.
[quote="executionist, post:11, topic:19620"]
^ The fan is supposed to be on during charge? My desi UPS units always charge with the fan off
when battery starts charging at higher amps, say after wapda resumes, then fan should run at full speed as lots of heat energy is being produced.. as battery ca=harges up and amps drops, then rpm may decrease in proportion with the heat decreased.... on full charge, fan runs very very slow, almost inaudible..
if your unit starts to heat up after 15 min of wapda back, then look at the fan behavior closely.. if you are skilled enough, you can dismount wash the fan in surf water for 15 min, air blower dry and lightly oil the fan borders with sewing grade oil, your fan should run optimally at full speed and very low noise..
i do that every 6 months with my PC PSU fan.. noise comes down from harley davidson level to low level phook quite..