HVAC Questions? Ask an HVAC Expert for Answers ASAP
Are you at the house now
Does it sound like the compressor is running
Yes, I am out the house. Yes it sounds like the compressor is running. It makes a buzzing noise and the fan stops.
I meant I am at the house.
it is probably cycling on low or high pressure
can you go outside and feel the smaller copper pipe while it is going on and off
let me know if it is cool,warm,or hot
I don't know what that means
do the same with the larger insulated pipe
okay i will go check it
should be cold
The smaller copper pipe is hot.
sounds like the fan motor is overheating and shutting off on its internal overload
do you have an amp probe meter
how long does the fan run before shutting off and how long is it off for
The larger insulated pipe is cool. I only turned the unit on when you told me to check it. The larger pipe is cool. It turns off with a grinding noise then back on. I think I have an amp probe. it shuts off about every 1-2 minutes.
it goes off about 1-2 seconds, and then it goes back on
I have a tester that reads amps ohms and voltages
If you can check the amp draw of the motor and see if it is overdrawing then you know for sure
opne the unit find the wire that feed the fan motor and clamp the meter aropund it.
check the name plate on the unit to see what the amp draw should be
how do i do that, I am a girl, can you be more specific lol
ok i will do that
by the way now the copper pipe is cool
i know girls who are hvac techs
thank correct when it is off
I put it on the two wires that went down toward fan and it popped, tripped the breaker, and melted the prongs
thats not good
what prongs melted
Well, I am not one, but I could be, but I really dont want to be a tech. So I should turn all the power off and try it again?
The metal ones on the tester the ends melted a little
yes just reset the breaker and see what happnes
well, I switched the breaker back on. but the air conditioner is still doing the same thing
does you meter look like this one with an opneing to clamp around a wire
no it didn't look like that. it has metal prongs at the end
then you cant measure AC amps
I think you did something wrong
anyway back to the original problem i think the motor is bad
you sound it sounded like it was grinding also. correct
it only grinds for a second when it shuts off
is the small copper pipe hot when the fan is running
they are both cool not cold and the fan has been running
and then the fan stops and the small one gets hot? or does the small one get hot and then the fan stopps
it runs for two minutes turns off for a second and then turns back on. the pipes are both cool not cold
Sorry got called away
I think that it may be low on freon.
the low pressure switch is a safty devise and it is tuning it off becuse the pressures are too low