SOURCE: Main burners don't come on, though the ignitor goes bright
you should hear a click ,its the valve opening ? of check to see if the air fiter is clean ,
SOURCE: goodman gmpn100-4 ignitor lights, burners don't ignite
1 blink is ignition failure
without being able to do voltage checks
i would reccomend checking your igniotor, if you can put an amp meter on it, it should read 2.6-3.4 amps
if you cannot do that, Or check voltages I woudl repalce the igniotor, gas valves do go bad but very few and far between....
at the risk of a bad rating you deserve at least an answer...
if i were called to your house with this complaint I woul not bother comming with out the ignitor
just because the igniotr looks likes its hot,, it may not be hot enough to safely open the gas valve
SOURCE: need help with a goodman gmt070 furnace
it may be clogged at the barbed fitting on the induced draft motor where the pressuer switch tubing connects. take a paper clip and **** it out make sure you can stick it thru freely till you can feel the Inducer wheel then reconnect and try again.
SOURCE: 3 flashing light....Aire-Flo furnace AF80MPA100B5A
That control board is several hundred dollars. If I may make a suggestion, take a jumper and when the inducer fan starts, jump out the pressure switch. If it starts, it's not the board but a bad switch, hose or blocked exhaust vent.
1. On a call for heat
2.The draft inducer motor starts.
3.The pressure switch which has a small plastic or rubber tube attached yo it senses the
negative pressure produced by the draft inducer and
closes.
4.The draft inducer runs for 30 seconds to a minute before you hear the gas making a hissing sound. The ignitor did not glow,therefore the flame sensor (a small
metal probe about 1/8" in diameter, with a white
porcelain base) does not sense the flame, so after 8
to 10 seconds the gas hissing sounds stops with no
ignition of gas to heat your home. Your furnace shuts down and goes into a lock out condition until you turn your power switch back
off and on again. Then the sequence starts all over
again with no ignition of the gas.
Solution:You probably need to
purchase and install a new ignitor. I would suggest that you inspect your
ignitor closely for cracks. Please Make sure you do not
touch the ignitor with your bare hands. If you do not
visually see a crack, then you could possibly have a furnace control board problem or a
bad limit switch or rollout switch problem.
1. Thermostat calls for heat.
2. Draft inducer motor starts.
3. Pressure switch attached by a small plastic or
rubber tube senses the negative pressure produced by
the draft inducer and closes.
4. Draft inducer runs for 30 seconds to a minute
before you hear a gas hissing sound. The ignitor did
not glow, the flame sensor (a small metal probe about
1/8" in diameter, with a white porcelain base) does not sense the flame, so after 8 to 10 seconds the hissing sounds stops
with no ignition of gas to heat your home. Your
furnace shuts down and goes into a lock out condition
until you turn your power switch back off and on
again. Then the sequence starts all over again with no ignition of the
gas.
Solution: You
probably need to purchase and install a new ignitor. I would suggest that you
inspect your ignitor closely for cracks. Make sure
you do not touch the ignitor with your bare hands. If
you do not visually see a crack, then you could have a furnace control board
problem or a limit, rollout switch problem. The furnace's
control board might not be supplying the voltage to the ignitor. If
your furnace lights and the gas stays on for 8 to 10 seconds, then shuts right
back off, then you need to clean your flame sensor with light sand paper or
steel wool. You might need a new flame sensor, but most of the time they can be
cleaned an will work well after cleaning.
1. Thermostat calls for heat.
2. Draft inducer motor starts.
3. Pressure switch attached by a small plastic or
rubber tube senses the negative pressure produced by
the draft inducer and closes.
4. Draft inducer runs for 30 seconds to a minute
before you hear a gas hissing sound. The ignitor did
not glow, the flame sensor (a small metal probe about
1/8" in diameter, with a white porcelain base) does not sense the flame, so after 8 to 10 seconds the hissing sounds stops
with no ignition of gas to heat your home. Your
furnace shuts down and goes into a lock out condition
until you turn your power switch back off and on
again. Then the sequence starts all over again with no ignition of the
gas.
Solution: You
probably need to purchase and install a new ignitor. I would suggest that you
inspect your ignitor closely for cracks. Make sure
you do not touch the ignitor with your bare hands. If
you do not visually see a crack, then you could have a furnace control board
problem or a limit, rollout switch problem. The furnace's
control board might not be supplying the voltage to the ignitor. If
your furnace lights and the gas stays on for 8 to 10 seconds, then shuts right
back off, then you need to clean your flame sensor with light sand paper or
steel wool. You might need a new flame sensor, but most of the time they can be
cleaned an will work well after cleaning.
412 views
Usually answered in minutes!
×