So my home a/c keep blowing 3 amp fuses. it throw code 24 which means
secondary voltage fuse. all the wires inside the a/c unit looks okay.
when i go outside to the unit itself i see some wires that are
opposed. i took a flat head to spread the wires apart but still
blowing fuses.where or how should i repair those wires? can i get a
kit or what?

On Mon, 18 Jun 2007 22:01:44 -0700, wrote:

So my home a/c keep blowing 3 amp fuses. it throw code 24 which means

Room AC? Central AC? What brand? What model? How old?

Where is the fuse? In the fuse box or in the AC? If the AC, which
half? Do you have the owners manual. My friend had half of it, but
there was another volume stuffed in the condenser box. The second
half had a basic wiring diagram that showed a fuse within the AC.

Where is your fuse?

secondary voltage fuse. all the wires inside the a/c unit looks okay.
when i go outside to the unit itself i see some wires that are
opposed.

Opposed to what? Abortion?

i took a flat head to spread the wires apart but still

Did you turn off the fuse or circuit breaker before you did this?
There is probably a circuit breaker or a removable connector in a grey
metal box near the outside AC. Did you turn it off/remove it? If
not, there are two circuit breakers in the house for most AC's. One
for the furnace part and one for the outside. Turn them both off.

blowing fuses.where or how should i repair those wires?

We don't yet know that the wires are the problem.

Are they actually touching each other? Are they suppposed to touch
each other? That is, do they both slide onto tabs that are connected
to each other further down. Many AC connectors are like U's, with a
wire connecting to each prong of the U. Use a flashlight and a
magnifiying glass if you have to.

Do you have a meter? Have you measure the AC voltage between these
two places (with the breakers on. BE careful, it may well be 220
volts, enough to kill you.)

It seems unlikely to me that if the AC used to work -- Did it? --
that wires that weren't touching each other are suddenly touching each
other.

It's probably something else.

can i get a
kit or what?

Kits are usually a box of parts. We don't even know what's broken
yet.

On Tue, 19 Jun 2007 01:41:26 -0400, mm
wrote:



i took a flat head to spread the wires apart but still

Did you turn off the fuse or circuit breaker before you did this?

I ask this because the 3 amp fuse that blew is not the fuse that
controls the 240 volts to the outside unit. Your AC uses much more
than 3 amps outside, and if a 3 amp fuse broke, it is just in the
control circuit, that powers the thermostat and the control of the AC,
including turning the compressor on and off. But even if that power
is gone, the 220 volts AC will still be there, and that can kill you.

If the 220 volts were on and you used a flat head to spread the wires
apart and there were no sparks or melting metal, iincluding the screw
driver, the two wires were probably at the same voltage and probably
connected to each other directly or indirectly.

If you dind't have sense enought to turn the 240 off before doing
this, you better damn well read some books and learn more before you
kill yourself. Or just stay away from 220 and 240 until you learn
what you're doing, and hope you don't kill yourself on 110. (which is
possible but harder to do.)

If you did turn the 220 power off before doing this, you should have
also measured the resistance between the two places after trying to
separate them. If it was zero, then they were meant to be connected.
It's unlikely enough that they would suddenly touch each other, but
much less likely that you couldn't separate them if they were meant to
be apart.

There is probably a circuit breaker or a removable connector in a grey
metal box near the outside AC. Did you turn it off/remove it? If
not, there are two circuit breakers in the house for most AC's. One
for the furnace part and one for the outside. Turn them both off.


Do you have a meter? Have you measure the AC voltage between these
two places (with the breakers on. BE careful, it may well be 220
volts, enough to kill you.)

Or the voltage may be zero volts AC between them, if they are supposed
to be connected together.

The control voltage is 24 volts AC. That's probably whatn the 3 amp
fuse is for. Turn off all the fuses and look for a short in the 24
volts circuit. You can't see electricity. Use an ohmmeter, part of
a multimeter, or VOM.

I'd suggest to call a HVAC repair company and have them come out
and fix it.

--

Christopher A. Young
You can't shout down a troll.
You have to starve them.
..

wrote in message
ups.com...
: So my home a/c keep blowing 3 amp fuses. it throw code 24 which
means
: secondary voltage fuse. all the wires inside the a/c unit looks
okay.
: when i go outside to the unit itself i see some wires that are
: opposed. i took a flat head to spread the wires apart but still
: blowing fuses.where or how should i repair those wires? can i
get a
: kit or what?
:

"mm" wrote in message
...
: Did you turn off the fuse or circuit breaker before you did
this?
:
: I ask this because the 3 amp fuse that blew is not the fuse
that
: controls the 240 volts to the outside unit.

CY: I suspect it is, if indirectly. I suspect the 3 amp fuse is
on the circuit that does several things -- including control the
240 volts to the outside unit.

Your AC uses much more
: than 3 amps outside, and if a 3 amp fuse broke, it is just in
the
: control circuit, that powers the thermostat and the control of
the AC,
: including turning the compressor on and off. But even if that
power
: is gone, the 220 volts AC will still be there, and that can
kill you.

CY: Which is it? Controls the 220 VAC or not? Yes, the 220 volt
power can be there even though the 3 amp fuse is blown or
missing.

:
: If the 220 volts were on and you used a flat head to spread the
wires
: apart and there were no sparks or melting metal, iincluding the
screw
: driver, the two wires were probably at the same voltage and
probably
: connected to each other directly or indirectly.

CY: Or the metal screw driver blew the 3 amp fuse.

:
: If you dind't have sense enought to turn the 240 off before
doing
: this, you better damn well read some books and learn more
before you
: kill yourself. Or just stay away from 220 and 240 until you
learn
: what you're doing, and hope you don't kill yourself on 110.
(which is
: possible but harder to do.)

CY: Or, maybe figure out which wire he means?

:
: If you did turn the 220 power off before doing this, you should
have
: also measured the resistance between the two places after
trying to
: separate them. If it was zero, then they were meant to be
connected.
: It's unlikely enough that they would suddenly touch each other,
but
: much less likely that you couldn't separate them if they were
meant to
: be apart.
:
: There is probably a circuit breaker or a removable connector
in a grey
: metal box near the outside AC. Did you turn it off/remove it?
If
: not, there are two circuit breakers in the house for most
AC's. One
: for the furnace part and one for the outside. Turn them both
off.
:
:

Yep, that was wild.

--

Christopher A. Young
You can't shout down a troll.
You have to starve them.
..

"Meat Plow" wrote in message
...
:
: check the 24 volt transformer, just a wild guess.
:

On Jun 19, 9:39 am, Meat Plow wrote:
On Tue, 19 Jun 2007 09:12:00 -0400, Stormin Mormon wrote:
Yep, that was wild.

I thought so too, that's why I typed it.

I gues the OP should just call the hvac dude like you suggested.

Hi, I read your problem and I think I can help. Is that 3 amp fuse
located inside the furnace or outside in the condenser?

wrote in message
ups.com...
So my home a/c keep blowing 3 amp fuses. it throw code 24 which means
secondary voltage fuse. all the wires inside the a/c unit looks okay.
when i go outside to the unit itself i see some wires that are
opposed. i took a flat head to spread the wires apart but still
blowing fuses.where or how should i repair those wires? can i get a
kit or what?


From your post, I doubt you know enough to do serious troubleshooting. Time
to call a pro.

wrote in message
ups.com...
So my home a/c keep blowing 3 amp fuses. it throw code 24 which means
secondary voltage fuse. all the wires inside the a/c unit looks okay.
when i go outside to the unit itself i see some wires that are
opposed. i took a flat head to spread the wires apart but still
blowing fuses.where or how should i repair those wires? can i get a
kit or what?

your 24 volt control wire is shorting somewhere.If the insulation is missing
anywhere on the low voltage control wire it will pop the small fuse.Mine was
a blade type like in a car.I pulled a new control wire and cured the problem
on mine.

On Tue, 19 Jun 2007 09:11:37 -0400, "Stormin Mormon"
wrote:

"mm" wrote in message
.. .
: Did you turn off the fuse or circuit breaker before you did
this?
:
: I ask this because the 3 amp fuse that blew is not the fuse
that
: controls the 240 volts to the outside unit.

Here I was thinking that it wasn't the fuse in the actual 240 volts
circuit. That's what I was referring to.

Below I started thinking about the control circuit.

A mistake for me to use "controls" both times.

CY: I suspect it is, if indirectly. I suspect the 3 amp fuse is
on the circuit that does several things -- including control the
240 volts to the outside unit.

Your AC uses much more
: than 3 amps outside, and if a 3 amp fuse broke, it is just in
the
: control circuit, that powers the thermostat and the control of
the AC,
: including turning the compressor on and off. But even if that
power
: is gone, the 220 volts AC will still be there, and that can
kill you.

CY: Which is it? Controls the 220 VAC or not? Yes, the 220 volt
power can be there even though the 3 amp fuse is blown or
missing.

:
: If the 220 volts were on and you used a flat head to spread the
wires
: apart and there were no sparks or melting metal, iincluding the
screw
: driver, the two wires were probably at the same voltage and
probably
: connected to each other directly or indirectly.

CY: Or the metal screw driver blew the 3 amp fuse.

:
: If you dind't have sense enought to turn the 240 off before
doing
: this, you better damn well read some books and learn more
before you
: kill yourself. Or just stay away from 220 and 240 until you
learn
: what you're doing, and hope you don't kill yourself on 110.
(which is
: possible but harder to do.)

CY: Or, maybe figure out which wire he means?

:
: If you did turn the 220 power off before doing this, you should
have
: also measured the resistance between the two places after
trying to
: separate them. If it was zero, then they were meant to be
connected.
: It's unlikely enough that they would suddenly touch each other,
but
: much less likely that you couldn't separate them if they were
meant to
: be apart.
:
: There is probably a circuit breaker or a removable connector
in a grey
: metal box near the outside AC. Did you turn it off/remove it?
If
: not, there are two circuit breakers in the house for most
AC's. One
: for the furnace part and one for the outside. Turn them both
off.
:
: