How to Troubleshoot an LG Dryer that's Overheating

In this short excerpt from one of our Live Dojos, we go into a real-world service call involving an LG electric dryer that was (possibly) overheating. We breakdown the correct troubleshooting tactics for this problem, including how and where to make amp measurements.
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[@beoutside]

I have an LG DLE3500 5 years old, electric front loading that stopped working, took it apart, cleaned all the lint out completely, tested all thermostat fuses and found the blower fuse tripped. Also tested Ohms resistance for all connectors on heater box ( approx 20/40/20, also checked that nothing was grounded to the heater box. Also tested Ohms per room temp for the thermistor in the blower housing and resistance on the moisture sensor. With new Blower housing thermistor and thermostat fuse worked well with two loads and over heated/ blew blower fuse ( showing continuity when tested) Replaced and dryer started right up.... placed a thermasat outside house into the venting escape ( 1 foot from dyer, 4 inch hard pipe) it reads starting at 78 then climbs as drying to 140... it added time, clothes not quite dry, then clothes became over dry, temp outside exhaust over 170 so I turned it off thinking it was going to blow a fuse again..... time left 15 min on sensor dry..... any tips?

[@ike7933]

If there was a short… It might NOT…. trip the breaker,.. if the three prong dryer cord is not wired properly as we see in many cases😅 I have seen this in a few cases

[@AppliantologyOrg]

But a grounded element is not a short condition. You still have a load in the new circuit: Line to partially broken element to chassis ground.

[@ike7933]

@@AppliantologyOrg sorry… I miss spoke… I meant a short to “ground”… that is not “grounded”

[@gonzgarr1592]

they use resistance for liability you do not have the power on so you can't get hurt

[@AppliantologyOrg]

You’re partially correct. But they also use ohms because many techs do not understand how to use watts or amps. Ohms are appropriate for DIYers but not professional techs who SHOULD know better.

[@gonzgarr1592]

@@AppliantologyOrg i agree with your reply it makes much sense thanks