My bernzomatic trigger-start torch ignites, but then the flame goes
out within 2 seconds even though gas is obviously still flowing. I
use the torch to sweat copper pipes, but very infrequently. Is there
something I need to clean or maintain? Do I have to buy a new one
every year or so??

Advice appreciated.
Theodore

On Jun 16, 12:19*pm, millinghill wrote:
My bernzomatic trigger-start torch ignites, but then the flame goes
out within 2 seconds even though gas is obviously still flowing. *I
use the torch to sweat copper pipes, but very infrequently. *Is there
something I need to clean or maintain? *Do I have to buy a new one
every year or so??

Advice appreciated.
Theodore

What happens if you try to relight it with a flame - like a match?
That wil tell you if the gas flow is sufficient. Maybe the gas is
coming out so fast it blows the flame out somehow. Buying a new one
each year is a stupid way to do things when the spark still works o
your present unit.

On Jun 16, 6:19*pm, millinghill wrote:
My bernzomatic trigger-start torch ignites, but then the flame goes
out within 2 seconds even though gas is obviously still flowing. *I
use the torch to sweat copper pipes, but very infrequently. *Is there
something I need to clean or maintain? *Do I have to buy a new one
every year or so??

Advice appreciated.
Theodore

The flameis "lifting off". It is caused by incorrect fuel air mix. You
need to clean the torch up, paying particular attention to the air
hole(s)/gas orifice (ie making sure it'snot parially blocked). You
need a piece of very thin wire for this. Don't go mad poking it out,
the hole can easily become enlarged again leading to problems.

harry wrote:

....


need to clean the torch up, paying particular attention to the air
hole(s)/gas orifice (ie making sure it'snot parially blocked). You
need a piece of very thin wire for this. ...


What one needs is a set of torch orifice cleaning reamers...even HD has
inexpensive set.

http://www.homedepot.com/buy/plumbing-torches-soldering-irons/lincoln-electric-tip-cleaner-oxygen-acetylene-torches-117469.html

--

On Jun 16, 6:19*pm, millinghill wrote:
My bernzomatic trigger-start torch ignites, but then the flame goes
out within 2 seconds even though gas is obviously still flowing. *I
use the torch to sweat copper pipes, but very infrequently. *Is there
something I need to clean or maintain? *Do I have to buy a new one
every year or so??

Advice appreciated.
Theodore

The problem arises when you change the gas cylinder and some crap gets
in the works of the torch and lodges behind the gas orifice.
Never leave the torch disconnected from the cylinder, insects may get
in or other crap. If you have an airline try blowing the "wrong" way
down the gas orifice with the valve open to clear it out.

But it may need to be completely dismantled to clean properly.(if
feasable)

On Jun 16, 1:19*pm, millinghill wrote:
My bernzomatic trigger-start torch ignites, but then the flame goes
out within 2 seconds even though gas is obviously still flowing. *I
use the torch to sweat copper pipes, but very infrequently. *Is there
something I need to clean or maintain? *Do I have to buy a new one
every year or so??

Advice appreciated.
Theodore

My ancient bernzomatic torch came with instructions to temporarily
reverse the orifice so the gas runs counter to the normal flow. This
can free any blockage in the very small diameter holes. Then put it
back to the proper orientation and it should work. However, I don't
know if this fix is applicable to newer models.

Joe G