Igniter or Pressure switch?
#1
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Igniter or Pressure switch?
Happy New Year folks.
Question on Goodman furnace, which decided that it would not work for the new year.
T-stat clicks on, inducer motor starts, after a few seconds I hear a click which is usually followed by the glow from the igniter, but that does not happen. After a few more seconds, everything shuts down and I get a faint smell of gas.
Is this behavior is consistent with (a) igniter or (b) pressure switch
TIA
Question on Goodman furnace, which decided that it would not work for the new year.
T-stat clicks on, inducer motor starts, after a few seconds I hear a click which is usually followed by the glow from the igniter, but that does not happen. After a few more seconds, everything shuts down and I get a faint smell of gas.
Is this behavior is consistent with (a) igniter or (b) pressure switch
TIA
#2
Can you post a picture of the ignitor?
If you can see an obvious crack in it you need a new one.
If you can see an obvious crack in it you need a new one.
Last edited by Houston204; 01-02-23 at 06:00 PM.
#4
A non contact volt stick is a great tool for checking for voltage to the ignitor.
You won't get gas with a pressure switch lockout.
You won't get gas with a pressure switch lockout.
#5
That looks like the igniter from my old Luxaire/York furnace. (they are more fragile than eggs.)
You have an igniter problem. It could be a defective igniter or it could be the control board.
You need to use a meter to check for 120vac on the igniter when it should be heating.
You have an igniter problem. It could be a defective igniter or it could be the control board.
You need to use a meter to check for 120vac on the igniter when it should be heating.
Houston204
voted this post useful.
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Thank you
Much appreciated. I thought it was the igniter because I smelled gas.
This Goodman is about 20 years old and original to the townhouse.
Since you guys do this for a living…..
If this were your home and you were replacing, the system because of age, what would you replace with and what is a good ballpark number? I’m in NJ.
Pretty sure the furnace is something like 45k BTU and the AC compressor is 2.5 tons. The townhouse is 2 floors and 1900 sqft. Both heat and AC work ok in normal weather and struggle a little in extremes, but I understand the builder designed for certain limits. Can’t really complain about that.
Thanks again
This Goodman is about 20 years old and original to the townhouse.
Since you guys do this for a living…..
If this were your home and you were replacing, the system because of age, what would you replace with and what is a good ballpark number? I’m in NJ.
Pretty sure the furnace is something like 45k BTU and the AC compressor is 2.5 tons. The townhouse is 2 floors and 1900 sqft. Both heat and AC work ok in normal weather and struggle a little in extremes, but I understand the builder designed for certain limits. Can’t really complain about that.
Thanks again
#8
Hard to say without knowing more about the duct work. If you are running a great external static pressure (.5 or .6" w.c.) then a 2 stage outdoor unit with an ecm indoor blower 2 stage furnace is an option to consider.
If you are running high external static pressure (~.9"w.c. or above) then keep a similar setup.
If you are running high external static pressure (~.9"w.c. or above) then keep a similar setup.