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KENMORE DRYER F40

BLOWN THERMAL FUSE

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9 replies to this topic

#1 dryerman45

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Posted 24 July 2013 - 08:48 PM

Dear Samurais,

I have an kenmore dryer model# 110.67082600.The customer said that she couldnt put her hand on top of the dryer because it was to hot to touch.She also said that her clothes were to hot to pull out of dryer.She was getting an ''AF'' error code before the unit stopped running.Now there is an ''F 40''.I think the F 40 error is because the thermal fuse is open and the motor wont run ,hence a communication error.My question is besides the thermal fuse what else needs to be replaced on this unit.Iam thinking exhaust thermistor.The tech sheet says it has an intake thermistor which is right next to the thermal fuse and a exhaust thermistor which I couldnt locate.I realize the AF error is air flow and ther isnt any blockages or restrictions.Please help

Thank you,

SAMANERA



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#2 RegUS_PatOff

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Posted 24 July 2013 - 09:24 PM

The Heating Element may be partially shorted to chassis /ground
test with OHM meter

OR
run the Dryer in an Air-Fluff / no-heat cycle
Make sure there is no heat
.

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#3 Samurai Appliance Repair Man

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Posted 25 July 2013 - 07:06 AM

Heating element:  http://www.repaircli...er=110.67082600

 

Heating-Element-8544772-01023918.jpg



#4 dryerman45

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Posted 25 July 2013 - 09:54 PM

Dear Master,

Thank you for your tip.I will go back with new heating element and thermal fuse.

I will have to check element when I go back.Iam getting alot of tough customers lately and they will only give you 1 maybe 2 chances to get right

SAMANERA



#5 dryerman45

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Posted 08 August 2013 - 08:57 PM

DEAR MASTER,

I replaced thethermal fuse and the exhaust thermistor.The heating element checked good with no shorts or partial shorts to ground.The customer said that she is still getting an ''AF''error code but only on the 40 minute cycle.When she uses the 60 minute cycle no AF ERROR.Any tips would be appreciated.Oh by the way the dryer is running not sure why the thermal fuse went bad to begin with

SAMANERA



#6 RegUS_PatOff

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Posted 08 August 2013 - 09:42 PM

... still getting an ''AF''error code

... not sure why the thermal fuse went bad to begin with

1) bad air-flow

2) bad air-flow

 

AF
Restricted Airflow Condition
AF flashes if a restricted airflow condition exists.
Check to make sure the lint screen is clean, the door seal is in place and the vent is not obstructed.

 

check your Venting System

Dryer Vent

Vent should be rigid metal.
Short lengths of flexible metal may be OK, if not crimped when moving the Dryer into place.
NO plastic
NO PVC
NO screws
Foil Duct Tape is OK.
With an empty load, Timed Dry, High Heat, the vent temperature should cycle somewhere between 135F and 160F
Check / clean the Dryer Vent
Disconnect the Dryer Vent and check for good air-flow there and where it exits the house.
Check the Vent air temperature at the back of the Dryer.


 

.

one of my video productions: “Easter Seals: Walk With Me”

every day is Down Syndrome Awareness Day
"A Child Is Waiting" . Burt Lancaster . Judy Garland . 1962

RegUS_PatOff > www.youtube.com/watch?v=oPAY2LsKVEw

#7 tpoindexter

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Posted 08 August 2013 - 09:49 PM

You've go an exhaust problem. That's probably why initially the thermal fuse blew. Remove the dryer vent hose and let it run. If it then goes past 40 minutes they need someone to clean the exhaust. I always clean the exhaust if it's one that just runs through the wall outside.


Test

#8 tpoindexter

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Posted 08 August 2013 - 09:55 PM

Reg looks like we're on the same page. There wasn't an answer when I started typing it just took me too long. Dog was bugging me. Anyways you answer is much more thorough.


Test

#9 dryerman45

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Posted 11 August 2013 - 12:15 AM

Thanks for your replies,

I went back to job and checked the vent and it is not blocked or restricted.The lint screen is clean and the door seal is fine.When I arrived the dryer was in use and seemed to be working ok then the ''AF'' error came on in the display.The customer told me this time that the dryer was making a loud noise.While the AF error was on i removed the vent hose just to see what would happen and the AF remained.I noticed that the blower motor was changing pitch slightly,so I asked the customer if the noise she was hearing sounded like a sort of hi-pitch woo,and she said yes.I think the blower motor may be the reason for the AF error being that if it slows down enough  the machine control would read that as an Air Flow problem and display that error.Wanted to see if you guys agree or what you might think

SAMANERA



#10 RegUS_PatOff

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Posted 11 August 2013 - 10:39 AM

Whirlpool: "Why a separate Blower Motor ?"

Blower Motor # 7  $$$

http://www.repaircli...8544775/1201300

 

 

K0702057-00003.png


.

one of my video productions: “Easter Seals: Walk With Me”

every day is Down Syndrome Awareness Day
"A Child Is Waiting" . Burt Lancaster . Judy Garland . 1962

RegUS_PatOff > www.youtube.com/watch?v=oPAY2LsKVEw




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