Checked all thermal fuse, igniter, temperature controllers, flame sensor, etc. All working perfectly.
First thing in the morning and gas valve coils are cold, when dryer calls for heat -> igniter glows bright orange, flame sensor allows coils to open and gas flows, ignites, heat -> perfect. Gas cycles off when upper setpoint temperature is reached.
Works like this for 3 or 4 cycles. But then no more gas/flame. Igniter and everything else working exactly the same. I can hear the click and feel the slight buzzing as the coils are energized, but no gas makes it thru the valve. Coils slightly warm to touch. I.e. after dryer is run for a while, no more gas but it's trying!
Checked DC resistance of coils, and it falls right inline with the numbers you've posted, so the coils can't be bad can they? Knowing how those coils are designed/made, I can't imagine they degrade over time.
My theory: the gas valve is slightly sticky/gummy and when the coils heat up they don't generate quite enough field to open the valve. In other words I should replace the $90 valve instead of just the $15 coils.
Am trying to take the least expensive path, and would love some advice how to proceed.
PS: I love you guys, and continue to be a loyal customer. Between your videos and these Q&A postings, you've saved me HUNDREDS in repair bills. I am becoming more and more comfortable fixing these appliances myself thanks to your awesome site, service, prices and fast delivery. I've tried to show some love by writing positive reviews on resellerratings.com. Thanks again!
J.beebo for Model Number LGQ9508LW0
Answer Hello J. Beebo. If the unit works for a while, then fails, it is leaning more toward the valve W10337269 more so on the unit. However, when it fails, make sure the thermostats are not sticking on the unit and causing the issue. Thank you for the compliments and for your business!
Note: This question is for the older version of this part, but we thought you might still find it helpful
The dryer flame is low. I checked all of the sensors with an ohm meter.
Joe O. for Model Number 11079522800
Answer Hello Joe,
Check the gas supply to ensure there's not an insufficient supply or restriction (crimped copper line, etc.). If there is no problem with the supply, the issue is probably the safety valve W10337269.