Derek;

It is likely the "click" you're hearing may be the "fan control" bringing on
the fan after the burners have been on awhile [normal.] But, if you have
left the blower door off, upside down in place, or even just open a little
bit [after changing your filter], you may have a condition where the blower
is 'sucking' all of the available air from the equipment closet [including
bringing any available fumes down the flu vent through the cold air
diverter]. This causes the flames to leave their respective home in the
burner compartment and come out. Sometimes [actually often] the cabinet is
starved for oxygen and the flames will 'roll' characterist having a 'whomp'
delayed ignition sound....

1) Make sure the furnace cabinet is sealed from the base by checking with a
flash light. [Remove the filter after opening the blower compartment, pass
the flashlight under the base and see if you notice any light coming through
any cracks in the floor base or where the furnace meets the floor base.

2) Make sure any combustion air inlet screens above and below the appliance
are clear of any insulation [there will be one located in the ceiling above
the furnace and one either in the wall close to the bottom of the furnace or
on the base with a metal enclosure going through to the crawl space if you
have one.] If they appear obstructed, clean them out.

3) Be sure the blower door is on the furnace compartment tight and correct.
Look for writing on the door to help you determine if the blower door is
facing the correct direction. There should not be any air leakage between
the door and blower compartment.

These suggestions are indicative of ALL furnace installation(s) in a closet
and are not 'brand specific' except for those that have "direct vent" or
"high efficiency" style appliance.

4) Call your local gas company and see if they'll send a APR [appliance
inspection] person for free - he'll give you a good inspection, [and won't
try to sell you something]and let you know if you need to call your friendly
local HVAC professional to check it.

--
Zyp
"derek" wrote in message
.191...
Hi Turtle
its a tempomatic
model#1117-07-4
Style 131
ser# 7036777

Thanks
again
Derek