Zato je vaša zunanja klimatska enota prenehala delovati

Nastavite termostat na 75 stopinj, na zaslonu pa piše, da je notri 77. Postavite se pod dovodne odprtine, da vidite, ali čutite zrak. Nada. Kaj se dogaja?

Če želite nadalje raziskati, stopite ven in preverite, ali vaša zunanja AC enota sploh deluje. Ventilator se ne vrti. Sploh ne poskuša priti. Brez klikanja. Brez zvoka. Nobene dejavnosti.

Zakaj je prenehal delovati?

Vse vrste težav lahko povzročijo izklop zunanje enote. Nekatere od teh težav so majhne. Toda drugi, no ...

Morda sploh niso majhne težave. Lahko so velike težave.

Dobra novica? Malo odpravljanja težav lahko veliko pripomore in morda vam sploh ne bo treba poklicati podjetja za HVAC.

Tukaj je nekaj pogostih razlogov, zaradi katerih lahko vaša zunanja enota nenadoma preneha delovati.

1. Slabi kontaktorji

Kaj bi se zgodilo, če bi vam pregorelo stikalo za kuhinjsko luč? Ali bi morali kuhati v temi ali kupiti novo stikalo.

No, kontaktor v vaši zunanji enoti je kot stikalo, ki vklopi AC. Če gre slabo - in včasih gre! - vaš AC ne deluje. Za zamenjavo kontaktorja boste morali najeti strokovnjaka za HVAC.

2. Sprožilo se je tlačno stikalo

Če ima vaša klimatska naprava nizko vsebnost hladilnega sredstva (aka freon), se je morda sprožilo tlačno stikalo. Enota se ne bo vklopila, če nimate dovolj hladilnega sredstva, in HVAC tehnik bo moral analizirati sistem, da vidi, kaj se dogaja.

Morda boste potrebovali le ponovno polnjenje hladilnega sredstva. Ali pa, če imate puščanje, bo vaš tehnik morda moral izvesti iskanje puščanja. V nekaterih primerih boste morali zamenjati sistem.

3. Zgorela odklopna omarica

Vidite tisto škatlo, nameščeno blizu zunanje enote? To se imenuje prekinitvena škatla. Včasih se povezave tam zrahljajo in zažgejo škatlo. Zagori lahko tudi, če se sproži odklopnik. Ko smo že pri …

4. Slab odklopnik

Včasih so odklopniki preobremenjeni in se pokvarijo. Morda se vam je to zgodilo z manj posledičnimi prekinjevalci tokokroga - kot je tisti, ki pomaga napajati vaš mešalnik za smoothije. Ko pa se to zgodi tistemu, ki napaja vašo zunanjo AC enoto, je zelo neprijetno.

Če imate le sprožen (vendar ne nedelujoč) odklopnik, lahko to popravite. Obrnite ga nazaj na mesto in preverite, ali se vaša zunanja enota vklopi! Lahko.

Če se sistem ponovno vklopi, vendar se odklopnik spet sproži, stikala ne preklopite drugič. V sistemu lahko pride do neposrednega kratkega stika, kar ogroža varnost.

5. Odklopite stikala

Priložnost lastnika stanovanja za odpravljanje težav: Preverite izklopna stikala na vaši notranji in zunanji enoti HVAC. Morda so bili samo trčeni. Maybe your kid threw a ball at the switch, or maybe your neighbor's annoying cat hopped up and switched it off (not joking).

Anyway, if the disconnect switch is off, your outdoor unit won't turn on. Just flip the switch, and you should be set!

6. Thermostat issues

Here's another one homeowners can usually solve. Check your thermostat. If it's not displaying anything, change out the batteries. Your AC might turn on right away!

If that doesn't solve the problem, your thermostat might be broken. You can replace it yourself or call in your HVAC guy to look things over before making a purchase.

7. Low voltage wire problem

Some of the low voltage wires coming off of your outdoor unit might be semi-exposed depending on the installation. If one of them gets cut or disconnected (think careless landscapers), your outdoor unit won't run. You'll need to have the wire replaced or reconnected.

It's best to hire a professional in this case unless you're pretty handy with wires and know how to fix it without getting zapped.

8. Blown fuse

Boom! These things just blow up sometimes. It's kind of like when the battery in your car goes bad. You have to replace it. If your outdoor unit isn't working, it might be because the 3 or 5 amp fuse in the indoor unit went bad.

9. Bad capacitor

Same sort of thing, only no explosions or crackling noises. Capacitors tend to die slowly and quietly.

The capacitor is one of your outdoor unit's starting components. It holds power and sends a jolt of it to your system to turn it on. These almost always go bad if you keep your system long enough. You'll need to have them switched out for new ones.

10. Tripped float switch

Your indoor unit expels condensate as the air conditioner removes humidity from your home. If the condensate drain gets clogged, your drain pan will start filling with water. If you've got a working float switch, it will trip. The whole system, outdoor unit included, will stop working.

An HVAC pro will need to inspect the system to see why the condensate line was clogging.

Most of the time, even the trickier issues can be fixed quickly.

You probably won't have to replace your air conditioner when any of this stuff happens. For your HVAC company, these are common and straightforward repairs.

And if you're in the habit of getting your AC inspected each year, you're a lot less prone to these issues than your neighbor who just hopes and prays everything is working ok. Everything always is working ok… until it's not.

If troubleshooting gets you nowhere and things are starting to heat up, you know who to call.