Samurai Appliance Repair Man's Blog

Sublime Master john63 is The School's resident LG and Samsung expert and offers these troubleshooting tips for LG electric dryers that won't heat gleaned from actual hand-to-hand combat with these machines.

HEATING ELEMENTS in LG dryers **rarely** fail.

Unless-----the *exhaust vent* from the rear of the dryer-to-the-outside-venthood is/has been blocked/restricted for a very,very long time.

Even then---the Heating Element usually does not fail.

I've replaced perhaps **one** Heating Element in nine years.

On the other hand---THERMAL LIMITERS will & do fail if the *exhaust vent* is blocked/restricted.
If the *exhaust vent* is a very short-length (1 to 3 feet)---then the liklihood of the vent causing a failed THERMAL LIMITER is nil. The 2nd most common cause of *failed* THERMAL LIMITERS is from Fabric Softener Sheets. Once-in-awhile the Fab. Soft. Sheet will become "caught/sucked" onto the LINT FILTER HOUSING and this causes a giant reduction in AIR FLOW.
Air movement from the Heater-Through-The-Laundry-Through-The-Lint-Filter-And-Exiting-The-Dryer-Exhaust-Vent slows to such a reduced a level---which then causes the Heater Housing Temperature to "spike". This in turn causes the THERMAL LIMITER to *shut-down* the Heater--for safety.



When I get an LG electric dryer that has a NO HEAT complaint--the very first thing that I will examine/rule-out will be the *exhaust venting* that runs from behind the dryer to the outside dryer vent hood. If the vent is has been verified 100% to be absolutely-positively clear/unobstructed---and...

1) The wall receptacle has 220 volts

***Unplug the Dryer at this point***

2) The TERMINAL BLOCK is not damaged/burnt (this is where the dryer plug attaches to the dryer)

Then it's time to inspect the THERMAL FUSE. This is centrally-mounted on the side of the HEATER HOUSING.
If the THERMAL FUSE (6931EL3003D) has failed a *continuity* test using a Digital MultiMeter (DMM)--it should be replaced along with the THERMOSTAT (6931EL3001E) which is also mounted on the HEATER HOUSING.

If the THERMAL LIMITER tested "good"...

Place the test leads into the Motor Connector/Plug. One test probe into each of the two *thickest* wires of the Motor Plug.

Looking at the Motor---you'll notice a *black ring* on the motor shaft directly opposite the Motor PULLEY.
This *black ring* is part of the CENTRIFUGAL SWITCH on the Motor (prevents the Heater from functioning if the Motor fails to start).
Use your finger to slide the *black ring* towards/in the direction of the BLOWER WHEEL (it'll slide about 1/2 inch).
At this point the DMM should show *continuity*. If not--replace the MOTOR.  

If the CENTRIFUGAL SWITCH tests good---replace the MAIN BOARD (a rare failure for a NO HEAT condition but not impossible).

Source: LG DLE7177RM Not Heating

Friggidaire used to make dyers for GE (example model number:  WSM2700HBWWW) back when GE was too busy building shoddy Mark 1 nuclear power plants to build their own shoddy dryers; those came later... and they're pretty damn shoddy.  The Frigidaire-built units were better though not nearly as good as the Whirlpool units with the lint filter i the top panel.  

Anyway, if your dryer Frigidaire-built GE dryer is making a squeeling noise in back, you probably need to replace the rear bearing kit.  

This unit is made by Frigidaire, here's a link to the bearing kit which includes a how-to video:



For manuals and lots of other goodies, become an Apprentice==> http://appliantology.org/apprentice/

Source: GE WSM2700HBWWW replace rear bearing

Example model number:  GEW9200

This problem is caused a bad door switch.  Here's the link to the door switch, click the picture:



You can test using an ohmmeter.  There are 3 prongs on switch, identified as C,NC, and NO.  

C-NC should be closed circuit until you push switch and then it should be open.

C-NO should be open circuit until you push switch and then read closed.


Buying the switch through this site is a risk-free proposition because you can return the switch for a refund if that doesn't fix it.  

Gott Ein Himmel! Well, ye of little faith, let's grab our "phillips" screwdriver and volt-ohmmeter...

1) Unplug the dryer.

2) Remove 3 "phillips" screws from the TOP COVER of the dryer. These screws are at the rear of the top cover.

3) Slide the top cover rearward about an inch & lift-off.

4) Open the DOOR of the dryer & remove 2 screws under the *opening*. Roughly located at the 5 and 7 O'clock locations.

5) Standing in front of the dryer & looking behind the control panel---unplug all wire connections to the MAIN BOARD.

6) Now remove the screws from the *corners* of the CONTROL PANEL (Note: Some dryers only have one screw on the right side

7) Grasp the top of the CONTROL PANEL & forcefully "peel" the panel off (This plastic is tough).

8) With the CONTROL PANEL removed---you'll notice 4 screws that secure the FRONT COVER. Remove those & slowly tilt the FRONT COVER towards you---disconnect the DOOR SWITCH PLUG. Set aside the front cover. Step back & look at the front of the dryer. On the lower right side is a *white* plug. Squeeze the tab on this plug & pull apart to disconnect. This is the plug for the MOISTURE SENSOR. (During re-assembly---don't forget this little guy).

9) Grab a FELT-TIP MARKER & place a *dot* next to the 2 screws on the front of the *silver* bracket that the CONTROL PANEL *snaps* onto. Then remove the 2 screws. Remove the other 2 screws at the top of the *silver* bracket and remove the silver bracket by pulling upward.

10) Remove 4 screws at each corner (or ear) of the FRONT DRUM SUPPORT ASSY.

11) Pull the SUPPORT ASSY upward & towards you--set aside.

12) Grab the DRUM & rotate counterclockwise while pulling towards you. The belt will slip off. Remove the DRUM.

13) You'll see a silver/square box on the right-hand side. Pull off the wires to the THERMAL LIMITER & test it for *continuity* with the test meter. If "open"---replace the THERMAL LIMITER and the other THERMOSTAT next to it.

14) If the THERMAL LIMITER has failed---the home exhaust vent *must* be cleaned. 100%.

15) Use a shop vac to clean everything up.

Re-assemble in reverse order.

Source: LG Tromm Electric Dryer DLE7177WM

Tech Sheet - 3977701.pdf

Source: Kenmore Elite 110.70052990 gas dryer service manual