Central nouns conditioner blows cold nouns simply intermittently? our central A/C unit works fine when we first turn it on,...
our central A/C unit works fine when we first turn it on, but at some point, will stop blowing cold nouns - the fan unit inside the house works fine, and the aficionado on the outside unit continues to run - if we turn the A/C off for give or take a few 10 minutes, it starts working again normally - circuit breaker does not trip, and fuses at service disconnect are fine - any ideas what is cause this? Not sure if it's relevant, but has been very well above 100 for the past few days when this has be happening. Thanks!
Answers: If the outside coils are dirty, it may be tripping of high pressure, (some unit have this safety, some don't). If the inside coil is dirty, or the filter is clogged, or the system is low on refrigerant, it may be starting to rime over the evaporator, which thaws when you shut it down, then starts the cycle adjectives over. You may want to turn off power to the outside unit and hose it out, trying to flush marine directly through the finned coils, (make sure you don't bend them over with high hose down pressure)..check that the air filter is clean, and if that doesn't do it for you, further movement will probably require a tech. you're in for a service call.
Hope this help.
20+ yrs hvac tech
sounds like you need both the inside and outside coils cleaned involve to call a tech