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Whirlpool WGD4800XQ1 only drys on High but takes 140 min to dry fully

Drakes8of8

Premium Member
Joined
Mar 9, 2019
Messages
2
Location
Long Island, NY
Model Number
WGD4800XQ1
Brand
Whirlpool
Age
1-5 years
Hi Forum Users,

I have a Whirlpool Dryer Model WGD4800XQ1 (gas) which only seems to get hot enough to dry when I set it to high. Even when I do it will not complete the drying before the 70 min timer runs out. It seems to loose heat before the dryer gets to the cool down cycle. So I began using the Auto Drying feature which will complete the drying but will not sense that the clothes are dry and will run for hours.

I have already changed the Thermostat and the Fuse by the Thermostat and there was no change to the behavior of the drying.

Continuity both before and after the parts swap was good, but since these parts were inexpensive I figured I would try it. I also checked there was no obstructions in the vent. It is clean and not pinched. The filter is also clean. I am trying to fix this on my own because this was an inexpensive dryer to begin with and going with a pro will cost nearly half of the dryers worth brand new. I do have access to a appliance parts depot that is near my house so I can get any parts I need.

I read a different thread where someone suggested that the timer may be bad, but it is progressing in Timed Dry, just not getting fully dry. It just does not stay hot through the entire timed dry. Auto-Dry will progress from "Really Dry" to "Less Dry" but then it stops progressing and seems to not sense the clothes are bone dry and had run overnight a couple times :wall:.

If any of you have suggestions on what to try next I would be greatly appreciative.

Thanks guys,
Drakes
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
118,147
Location
McMullen Valley, Arizona
Hi Drakes,

When it takes more than one cycle to dry a load, most of the time the problem is an airflow issue. Did you clean the outside vent? They usually have a flapper that gets stuck sometimes and blocks the airflow. Make sure you can feel the air blowing through the outside vent. Make sure drum is empty (no clothes) and the lint screen is clean. Remove the vent hose from the dryer. Start the dryer on high heat, timed dry (about 40 minutes). Measure the temperature at the vent. If your meter can't read temperatures, a meat thermometer will work. You should have 170*F - 190*F.

If the temperatures are too low the problem could be the gas valve coils. On the front panel below the door on the left side is a plastic piece that usually has the Whirlpool logo on it. That's a view port. Use a small screwdriver to pop it out and watch what the gas valve is doing. What you should see and hear when you start the dryer is a click and the igniter should glow bright red.

Then you'll hear another click, and the igniter will turn off and the valve opens and lets the gas flow through and ignites from the still hot igniter.

Then you'll see the flame for several minutes. When the dryer reaches the correct temperature the cycling thermostat will open shutting off power to the gas valve and the valve closes stopping the gas flow.

When the temperature goes below 150*F, the thermostat closes restoring power to the gas valve. You'll hear a click (holding coil opens in valve and the igniter glows red). The igniter is by the flame switch. When the heat from the igniter opens the flame switch the igniter shuts off and voltage is directed to the main valve and you hear another click and the valve opens, and gas flows through the valve and is ignited by the still hot igniter.

This continues throughout the cycle. If you see the igniter glow red then shut off but there is no flame or gas flow, replace the coils.

Here's the gas coils for your model(Video Included in part link):
Gas Valve Solenoid WPW10328463


Jake
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
118,147
Location
McMullen Valley, Arizona
Ok Drakes, sounds good, yes let us know how it goes.:)

Jake
 
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