Kitchen Gas Appliances - Gas Burner out of Adjustment
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rightoo
12-14-01, 07:52 PM
Have A Tappan range, probably around late 1950's. The burners have the following problems. When the knob is turned to 9:00, the flame is at high. When the knob is at 6:00, the flame should be at low or simmer. The problem is that the flame goes out before the knob stops at 6:00. an this be adjusted? Also, an the flame be adjusted so that it is very low and does not blow out? Thanks.
Sharp Advice
12-15-01, 02:39 AM
Hello Rightoo. Welcome to my Gas Appliances forum.
Yes. Each stove burners flame size can be adjusted seperately. However, the caution is not to overly adjust anyone one of them too much, large or small. Each burner flame should match each other according to burner diameter size.
If the orifices are adjustable, use a 7/16 wrench and turn them inwards towrads the manifold pipe to reduce the flame size. If adjustment doesn't work, then there isn't any spade point part inside the orifice. In this case, the hole is too large.
The burner orifice is either opened too much [allowing too much gas out} or it is none adjustable. You'll have to use a 7/16 inch wrench and turn the brass orifice clockwise until it is either closed fully or bottomed out on the gas valve.
If the orifice bottoms out fully and gas continues to flow thru it when the knob is turned back on, it is a non adjustable orifice. In this case, the hole in it is too large. The orifice will need to be replaced with one of the corect size.
If no gas passes thru the fully closed orifice, it's an adjustable orifice. In this case, open it 3 or 4 turns and check the flames size.
The air shutter adjustment needs to be OPENED more or fully. The shutter is located at the end of the burner tube. Once this is adjusted correctly, there should be NO yellow flames.
An excellent source for orifice replacements is your local retail appliance parts store. Parts dealers are listed in the phone book under appliances.
Regards & Good Luck
Forum Moderator
Tom_Bart.....TCB4U2B2B Enterprises
http://www.atozplumbing.com/HTMLobj-1247/aniGif.gif
Energy Conservation Consultant & Natural Gas Appliance Diagnostics Technician.
Yes. Each stove burners flame size can be adjusted seperately. However, the caution is not to overly adjust anyone one of them too much, large or small. Each burner flame should match each other according to burner diameter size.
If the orifices are adjustable, use a 7/16 wrench and turn them inwards towrads the manifold pipe to reduce the flame size. If adjustment doesn't work, then there isn't any spade point part inside the orifice. In this case, the hole is too large.
The burner orifice is either opened too much [allowing too much gas out} or it is none adjustable. You'll have to use a 7/16 inch wrench and turn the brass orifice clockwise until it is either closed fully or bottomed out on the gas valve.
If the orifice bottoms out fully and gas continues to flow thru it when the knob is turned back on, it is a non adjustable orifice. In this case, the hole in it is too large. The orifice will need to be replaced with one of the corect size.
If no gas passes thru the fully closed orifice, it's an adjustable orifice. In this case, open it 3 or 4 turns and check the flames size.
The air shutter adjustment needs to be OPENED more or fully. The shutter is located at the end of the burner tube. Once this is adjusted correctly, there should be NO yellow flames.
An excellent source for orifice replacements is your local retail appliance parts store. Parts dealers are listed in the phone book under appliances.
Regards & Good Luck
Forum Moderator
Tom_Bart.....TCB4U2B2B Enterprises
http://www.atozplumbing.com/HTMLobj-1247/aniGif.gif
Energy Conservation Consultant & Natural Gas Appliance Diagnostics Technician.
rightoo
12-18-01, 12:00 PM
What exactly is the orifice? If I pull out the knob and look straight at the stem, there is a tear drop like washer like thing around the stem with a screw on it. Is this the adjustment? Thanks.
Sharp Advice
12-18-01, 01:48 PM
Hello: Rightoo
OOOPS! I 4 got to mention where the orifice is located...:eek:
The part you removed was the burner knob. The burner knob is installed on the gas valves stem.
The burner orifice is the brass or bronze metal part with the hex nut on it and it is located where the burner tube ends. The orifice supports the backend {opposite end of the burner head} of the burner tube. The back end of the burners tube has the air adjustment shutter on it.
Regarding the tear drop looking like thingy you mentioned should NOT be removed at anytime. If I got that part right from your description, it's the hold down plate on the gas valves body.
DO NOT remove that part! The hold down plate is ther to hold down the core valve and keep the stem attached to the gas valve. Removing this part will cause you major problems...:o
OOOPS! I 4 got to mention where the orifice is located...:eek:
The part you removed was the burner knob. The burner knob is installed on the gas valves stem.
The burner orifice is the brass or bronze metal part with the hex nut on it and it is located where the burner tube ends. The orifice supports the backend {opposite end of the burner head} of the burner tube. The back end of the burners tube has the air adjustment shutter on it.
Regarding the tear drop looking like thingy you mentioned should NOT be removed at anytime. If I got that part right from your description, it's the hold down plate on the gas valves body.
DO NOT remove that part! The hold down plate is ther to hold down the core valve and keep the stem attached to the gas valve. Removing this part will cause you major problems...:o
rightoo
12-19-01, 09:30 AM
Tom,
First, thanks for all the help. The teardrop washer thing did the trick. By loosing the screw and rotating this washer, it acted like a stop. The more it was rotated clockwise, the less the knob is able to turn counterclockwise. I probably am not decribing the part well, but I am doing my best.
I have another problem . All 4 burners work well except 1 burner has a loose stem. The unit works fine, but the stem has some slop. It jiggles. Any solutions?
First, thanks for all the help. The teardrop washer thing did the trick. By loosing the screw and rotating this washer, it acted like a stop. The more it was rotated clockwise, the less the knob is able to turn counterclockwise. I probably am not decribing the part well, but I am doing my best.
I have another problem . All 4 burners work well except 1 burner has a loose stem. The unit works fine, but the stem has some slop. It jiggles. Any solutions?
Sharp Advice
12-19-01, 12:08 PM
Originally posted by rightoo
Tom,
I have another problem . All 4 burners work well except 1 burner has a loose stem. The unit works fine, but the stem has some slop. It jiggles. Any solutions?
If the stem is loose, the valve must be a multi-position valve. What this means it clicks into different flame sizes. One click for HIGH, One click for Medium, One click for Low and may even have a click spot for the Simmer flame size.
If the above is correct, replacing the valve is the ONLY fix-it correction. Attempting to take the valve apart to correct the loose stem condition, not only can become fustrating, dam near impossible to reassembly correctly, etc. etc. & etc. it can become a gas leak hazard.
Generically speaking...it's like playing with fire.
Professional speaking...repairs such as this type are not done. NEW valves are installed to eliminate liability, hazards from fires and or explosions, due to leaks.
It is not suggested nor recommended you attempt to fix a loose top burners valve stem. It is recommended to replace the entire valve body with a new replacement. The choice is yours.
Hope this answers all your questions.
Regards & Once Again....Good Luck
Gas Appliances Forum Moderator
Tom_Bart.........Fast, Fair, Friendly & Highly Efficient....:D
Accurate Power Equipment Company.....TCB4U2B2B
Energy Conservation Consultant & Natural Gas Appliance Problem Diagnostics Technician.
Please be advised that although I have spent many years in the gas appliance industry, some appliance diagnostic information provided is exclusively from memory....:)
Tom,
I have another problem . All 4 burners work well except 1 burner has a loose stem. The unit works fine, but the stem has some slop. It jiggles. Any solutions?
If the stem is loose, the valve must be a multi-position valve. What this means it clicks into different flame sizes. One click for HIGH, One click for Medium, One click for Low and may even have a click spot for the Simmer flame size.
If the above is correct, replacing the valve is the ONLY fix-it correction. Attempting to take the valve apart to correct the loose stem condition, not only can become fustrating, dam near impossible to reassembly correctly, etc. etc. & etc. it can become a gas leak hazard.
Generically speaking...it's like playing with fire.
Professional speaking...repairs such as this type are not done. NEW valves are installed to eliminate liability, hazards from fires and or explosions, due to leaks.
It is not suggested nor recommended you attempt to fix a loose top burners valve stem. It is recommended to replace the entire valve body with a new replacement. The choice is yours.
Hope this answers all your questions.
Regards & Once Again....Good Luck
Gas Appliances Forum Moderator
Tom_Bart.........Fast, Fair, Friendly & Highly Efficient....:D
Accurate Power Equipment Company.....TCB4U2B2B
Energy Conservation Consultant & Natural Gas Appliance Problem Diagnostics Technician.
Please be advised that although I have spent many years in the gas appliance industry, some appliance diagnostic information provided is exclusively from memory....:)