My sister's furnace isn't working right now and she can't seem to find where the burner pilot is located to see if it's on or not. Is there a website where it shows a diagram or picture of the 2005 Honeywell furnace where the pilot burner is located?
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see this causes and fix it. God bless you o light the pilot on a standing-pilot (always on) ignition system,
follow the lighting instructions located near the control. Otherwise,
try these steps:
Light the pilot:
Press and hold the pilot control knob to start the pilot.
Set the control knob to the
pilot position. Hold a long match under the pilot gas port.
Press the control knob; the pilot should light. Hold the control
knob down until the flame is burning brightly (about 30 seconds).
Release pressure on the knob, and turn it to the
If the pilot goes out when you release the control knob, try
relighting, holding the control knob down longer. If the pilot again
goes out, check the thermocouple (below).
Adjust the pilot:
Remove any cap covering the pilot adjusting screw on a combination control.
Turn the adjusting screw counterclockwise to increase the flame or
clockwise to decrease it. It is correctly adjusted when the flame
envelops the thermocouple bulb by 1/2 inch and appears dark blue with a
small yellow tip.
Test and replace a thermocouple:
Hold the control knob to
pilot and light the pilot as above.
Unscrew the thermocouple fitting with an open-ended wrench.
Set a multimeter to the DVC (lowest voltage) scale.
Clip one multimeter lead to the end of the thermocouple tube
nearest the pilot and the other lead to the fitting on the other end of
If the multimeter shows a reading besides zero, the thermocouple is functioning. Replace the thermocouple tube.
If there is no reading, you will need to clean or replace the thermocouple following steps 7 through 11.
Release the control knob and shut off the main gas valve on the
gas-supply pipe that leads into the burner. Shut off power to the burner
at the electrical service panel.
Remove the thermocouple from its mounting bracket.
Wipe the combination control clean and install a new thermocouple,
tightening it by hand, then give it a one-quarter turn with a wrench.
Insert the thermocouple into the pilot bracket, being careful to not crimp the tubing.
Turn on power to the furnace and relight the pilot (above).
Adjust an adjustable burner air shutter:
Set the thermostat to its highest setting to keep the burner
running. Once the furnace has heated up, remove the burner access panel
and loosen the locking screw.
Open the shutter by turning it to the right until the blue base of
the flame appears to lift slightly from the burner port surface. Then
close the shutter until the flame reseats itself on the surface.
Clean removable burner tubes and ports:
Shut off gas and power to the furnace.
Unscrew or loosen and remove the tubes from the supporting bracket.
Carefully clean the tubes with a brush or vacuum, making sure not to damage the burner ports.
Use a stiff wire to clear any debris from clogged ports.
I think you have a bad thermocouple. The thing your lighting should be the pilot(otherwise you got a bigger problem and you should definitely call someone). The thermocouple senses heat so if it's bad it won't send the signal to the gas valve to open.
The pilot is iside the burner compartment of the furnace. Remove the cover and follow the 1/8" tubing to an orifice. This is where you light the pilot. the gas valve must also be turned off for a couple of minutes before trying to light the pilot. After a few minutes, turn the valve to pilot and light the pilot. Hold it for 30 seconds and then turn the valve to "ON"
Hello,If you cleaned the flame sensor and it is in the pilot flame,Try adding a ground wire from the pilot assembly to any close screw to boost the (pilot on) signal.Also if the valve has been sitting for a while give a tap once during (pilot on) to make sure the diaphram is just not hung up.I would hate to replace the valve and still have the same problem.
What type of gas supply line do you have? Is it black pipe or copper? If it is copper, there can be a film like substance that builds up on the inside of the copper. The debris will the get caught in a pre screen where the supply enters the valve thus cutting the supply of gas to the unit. Also, the thermocouple may be bad. You didn't say that you replaced it. Try replacing it as well. Also, you could have a limit switch turning the system off and thus cutting the gas off completely but it is highly unusual for the pilot to be cut off as well unless the pilot is being blown out when the gas is shut off. Also, turn the unit to fan only without calling for heat. Using a flame of some sort, put it into each baffle of the heat exchanger. If your flame is being blown around in one of the baffles, then you have a hole in the heat exchanger and what is happening is that the roll out switch is cutting the unit off and the air still moving through the heat exchanger is blowing the pilot out. I have seen this actually happen. If your furnace is in excess of 15 years old, it does need to be checked for possible holes. If it is in excess of 25 years old, it is a huge possibility that the unit has already developed a hole. If you feel hair coming out of one of the baffles, then shut the unit down immediately and have it replaced!
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.
The burners and pilot need to be cleaned.
Turn off gas and power, remove the burners and pilot. Clean with a brass wire brush. (Steel wire can be used but very carefully) Remove all rust dirt etc. reinstall and it should fire right up.
I had the same problem with the same honeywell vr8440p2088 gas controler. I found out the nob to turn on the pilot was broken. If you can pull the knob off it is broken. The knob has two small teeth on it to keep the pilot and gas open. good look finding a replacment knob as the part is not made anymore. But there is a relacement part for it. it just costs about 250.00.