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The igniter on my york furnace stays on for a sufficient time but the heat sensor either doesnt work or the gas isnt getting through and there is no gas lighting

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  • Zachary Oct 01, 2010

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Make shure you have the gas valve on next use a voltage met and test voltage at the gas valve wires they should have 24 volts going to the gas valve the flame sensor only comes into play after the flame is lit

Posted on Oct 01, 2010

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Posted on Jan 02, 2017

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York gas furnace pilot lights and begins heat cycle but burner quickly goes out and system continues to run blowing cold air


There is a flame sensor that holds the gas valve open when there is a flame present. Heat generates about 10 to 15 milivolts to do this. Make sure the side of the flame is touching the sensor. If it looks ok Tighten the fitting that holds the sensor to the gas valve. If it still won't stay lit after all that then replace the sensor. They do fail with time.

Mar 29, 2015 | Heating & Cooling

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I have a 11 year-old york diamond 80 furnace. The flame sensor lights up and ignite the flame for about 5-6 seconds. Soon the flame goes out once again. There's this clicking sound that is heard every


You need to clean the sensor with steel wool so its very clean check sensor connections . If it is still not working you could change sensor also check out the pressure switch .

Jun 20, 2017 | Heating & Cooling

1 Answer

Doesnt blow any heat we checked all connections furnace clicks on but never gets warm we think maybe its the heating element but we are not sure how to get to it to check


Problem: Your furnace will not ignite the gas to produce heat for your home. When a furnace has a bad ignitor what I see most of the time is the following sequence of operation:


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.

Dec 19, 2010 | Heating & Cooling

1 Answer

My York Stellar PLUS furnace (Model P2UDD12N07601C) will not stay on; The ventilator fan runs, the main blower runs, the igniter comes on for approximately ten (10) seconds and you can hear the gas valve...


Check gas pressure, inspect manifold & make sure there is not a blockage.Make sure gas is present and main gas shut off valve to furnace is on also check the knob on the 24 volt gas valve and see if it is in the on position , check the MV terminal on the gas valve to 24 volt common with a volt tester to see if you have 24 volts present, if you do have 24 volts at gas valve, replace valve. if you do not have 24 volts at gas valve check high limit control & roll out limits for a open circuit, Good luck.

Feb 20, 2010 | York Furnace Draft Inducer Blower Fasco #...

2 Answers

Gas furnace


Hi check out the pressure switch clean the air filter and check out the fan control see if this is clean

Feb 16, 2010 | York Furnace Draft Inducer Blower Fasco #...

1 Answer

I have a new York hybrid heat pump/gas furance


Did they check the sensor in the plenum. You are suppose to have bonnet sensor to switch from heat heat pump to gas whaen it is to cold for the heat pump. The bonnet sensor may be to bad. The unit is cycling ever five minutes because it may have five minute time delay.

Dec 15, 2009 | Honeywell Programmable Thermostat Heater

7 Answers

My york diamond 80 can be fired up, but it is shut off automaticaly after approx. 20sec. This can be repeated 3 times. I beleive the fun and borad panel are working fine.


The flame sensor might have dust build up on it. The flame sensor makes sure that the system has ignited before it starts the main blower. If it ignite and burns for 15-20 seconds then goes out that is most likely your problem. Identify a probe that is in the direct path of the flame(usually in the last burner tube from the gas source), it will have one wire coming off of it and usually has one screw holding it in place. As time goes by the sensor will get a build up on it and stop functioning. Turn the power to your furnace off, then remove the screw and then gently pull the flame sensor out. Using a MILD abrasive like panty hose of paper towel (DO NOT USE sand paper) clean the sensor and then put it back into place. Tighten the screw and then turn your furnace back on. That should fix your problem.

Oct 18, 2009 | York Furnace Draft Inducer Blower Fasco #...

1 Answer

Rheem gas furnace pilot lights, but no burners or fan


If the burners do not fully ignite, the sensor will shut the furnace down. The lack of sufficient burner flame is a gas valve or gas pressure problem within the valve.
Replacing the gas valve with the original one may get you going. I surely suggest a professional service company for safety reasons and a thorough inspection. A 20 year old furnace is past it's normal life span.

Jan 06, 2009 | Heating & Cooling

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