Is it typical for cental nouns to enjoy rime accumulate around pipe? My CA is working, but the aficionado is not blowing? air as strong as it should be, its be running for...

air as strong as it should be, its be running for days and the temp been equal, I went out and notice there is rime around a pipe. What could be the problem? Thanks
Answers:    change the filter put it within fan simply and call a tech more than plausible you low on refridgerant worst case dirty evap coil thats why they phone acman
Remove the filter and get a modern one if it is dirty. Turn the thermostat to off and the supporter switch to on. This will allow the coils to thaw. tolerate it go for a couple of hours. Turn the supporter back to auto and the other to cool and see how it is. If it works replace the filter and you are obedient to go. If not, the coils could be dirty or the system low on refrigerant.