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Dryer question |
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thendrix
Orange Level Joined: 04 Feb 2013 Location: Fairmount GA Points: 4746 |
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Posted: 17 Jan 2020 at 6:56am |
My grandmother has a Maytag gas dryer that's about 30 years old and it's having trouble heating. The ignitor will come on and the flame sensor turns the ignitor off like it should then the gas comes on and it lites. After 10 to 20 seconds the burner goes out and it won't relight. I replaced the gas valve coils but no help. I want to fix this dryer if possible because 1) it's better than anything you can buy new and 2) my grandmother is 81 years old and I don't want her to have to buy a new dryer when there's no telling how long she'll need it. Little morbid but truth is truth. Any suggestion? The lint trap is clean and I'm almost sure the vent is open and working like it should
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"Farming is a business that makes a Las Vegas craps table look like a regular paycheck" Ronald Reagan
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im4racin
Orange Level Joined: 12 Jun 2017 Location: Garrison ND Points: 851 |
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Try cleaning the flame sensor or replace it. The igniter is on a timer not flame sense. The controller doesn't see flame so turns off gas.
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thendrix
Orange Level Joined: 04 Feb 2013 Location: Fairmount GA Points: 4746 |
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I'll check that next. That was my original thought because that's how the furnaces that used to be used in chicken houses work but I found somewhere on the internet it said different. That's what I get for listening to the internet.
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"Farming is a business that makes a Las Vegas craps table look like a regular paycheck" Ronald Reagan
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jaybmiller
Orange Level Access Joined: 12 Sep 2009 Location: Greensville,Ont Points: 21668 |
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yeah 30 year old tech is good stuff... new stuff, not so good.... I 2nd the 'flame sensor'. Probably 'old school' and 30 years worth of soot finally 'hid' theh flame from the sensor. hope you have good luck !
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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor) Never burn your bridges, unless you can walk on water |
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Ray54
Orange Level Access Joined: 22 Nov 2009 Location: Paso Robles, Ca Points: 4378 |
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May not a apply,but if propane it could be the regulater going bad. When not using heater just the water heater had this. The copper pigtail was flacking off and plugging regulater. Replace the copper pigtail from tank and all was well again.
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thendrix
Orange Level Joined: 04 Feb 2013 Location: Fairmount GA Points: 4746 |
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The only reason I'm not thinking regulator is the heat and the water heater both work fine. If a flame sensor can't fix it then I'll look further into the gas lines
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"Farming is a business that makes a Las Vegas craps table look like a regular paycheck" Ronald Reagan
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shameless dude
Orange Level Joined: 10 Apr 2017 Location: east NE Points: 13611 |
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I think if the thermal coupler is bad, it wouldn't light at all.
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Dusty MI
Orange Level Joined: 13 Sep 2009 Location: Charlotte, Mi Points: 5053 |
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A bad thermal couple will let it light but not stay light. Dusty
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917 H, '48 G, '65 D-10 series III "Allis Express"
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thendrix
Orange Level Joined: 04 Feb 2013 Location: Fairmount GA Points: 4746 |
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Who'd a thunk it?? The vent pipe came off. Put it back on, dried a load of clothes like it always has.
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"Farming is a business that makes a Las Vegas craps table look like a regular paycheck" Ronald Reagan
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chaskaduo
Orange Level Joined: 26 Nov 2016 Location: Twin Cities Points: 5203 |
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There's one for the memory bank. Now what was it we was talking about?
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1938 B, 79 Dynamark 11/36 6spd, 95 Weed-Eater 16hp, 2010 Bolens 14hp
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Ted J
Orange Level Joined: 05 Jul 2010 Location: La Crosse, WI Points: 18743 |
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Something to do with a Ferd pickup,,,,,,,,,,,I think.
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"Allis-Express"
19?? WC / 1941 C / 1952 CA / 1956 WD45 / 1957 WD45 / 1958 D-17 |
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jaybmiller
Orange Level Access Joined: 12 Sep 2009 Location: Greensville,Ont Points: 21668 |
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well THAT'S a new one for me !! maybe there's some kind of 'draft' sensor ? |
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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor) Never burn your bridges, unless you can walk on water |
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thendrix
Orange Level Joined: 04 Feb 2013 Location: Fairmount GA Points: 4746 |
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No idea about the sensor but a happy Nana means a pot of vegetable soup
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"Farming is a business that makes a Las Vegas craps table look like a regular paycheck" Ronald Reagan
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chaskaduo
Orange Level Joined: 26 Nov 2016 Location: Twin Cities Points: 5203 |
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Vegetable soup with lots of love.
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1938 B, 79 Dynamark 11/36 6spd, 95 Weed-Eater 16hp, 2010 Bolens 14hp
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thendrix
Orange Level Joined: 04 Feb 2013 Location: Fairmount GA Points: 4746 |
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Just finished. Man that woman can make some veggie soup
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"Farming is a business that makes a Las Vegas craps table look like a regular paycheck" Ronald Reagan
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Hubert (Ga)engine7
Orange Level Joined: 12 Sep 2009 Location: Jackson Cnty,GA Points: 6154 |
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Bet that soup is the best around. Mom had "the touch" and even using the same recipe my wife or I neither one can even come close. With this cool weather just around the corner I hope she made you enough to last a day or two. Glad you got the dryer fixed, don't you love it when it is something simple and takes you forever to find it.
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Just an old country boy saved by the grace of God.
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thendrix
Orange Level Joined: 04 Feb 2013 Location: Fairmount GA Points: 4746 |
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Hehe. Yeah I hate it when it takes forever but when it happens that way all the time you get used to it
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"Farming is a business that makes a Las Vegas craps table look like a regular paycheck" Ronald Reagan
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DaveKamp
Orange Level Access Joined: 12 Apr 2010 Location: LeClaire, Ia Points: 5651 |
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If the gas dryer is 30 years old, it doesn't suffer from an excess of 'safety brains'... all the protection is basically inside the gas valve... which is essentially the same valving that's used in a furnace, or a hot water heater. Most likely, the reason the flame went out with the exhaust vent removed, was a rapid decline in the amount of available oxygen... the flame was suffocated... by exhaust... which means you're lucky... could'a been tragic. If it uses a hot-surface ignitor, the ignitor current flows through a detection solenoid in the valve... if there's insufficient current through that HSI, the gas valve will drop out after about ten seconds. It has a thermocouple flame sensor of some sort... typically, they're same scenario as an HSI... presence of flame provides a MILLIVOLT, low current signal strong enough to hold in a tiny solenoid in the valve. no flame, no hold magnet, it will NOT flow fuel without it. Note that valves will LIGHT without those sensors being satisfied... because there's a 'start circuit' in the valve that can be triggered for a few seconds in order to get ignition, but after a few, that circuit will release, and the flame will go out, unless the safeties have determined that a flame has been attained.
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Ten Amendments, Ten Commandments, and one Golden Rule solve most every problem. Citrus hand-cleaner with Pumice does the rest.
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