Whirlpol Estate Electric Dryer No Heat - YEED4400WQ0

[JSchell]

Hi,

My Estate dryer stopped heating on the auto-sense cycle, but worked on the timed. Just recently it has stopped heating on any cycle. When the auto-sense cycle stopped heating, I took the back off the dryer and cleaned the lint out and did a visual inspection of the heating element but could not see anything wrong. Thinking that the problem was likely the build up of lint I put it back together and tried it with no success.

Today, I tested the element, thermal fuse and the high limit thermostat with the following readings:

Element - 10.9 ohms

Thermal Fuse - .6 ohms

High Limit Thermometer - 1.3 ohms

All were tested while removed from the dryer and using a digital multi-meter on the 200 ohm (lowest) setting.

 

Based on what I have read and seen on YouTube, I am having a degree of difficulty interpreting the readings.

If one of you kind Appliantologists would help me figure out what the issue is, I would be eternally grateful.

 

Thank you,

 

Jeff

 

 

[16345Ed]

Let's start at the beginning. 

Power source, have you verified you have 240 VAC at outlet or at terminal block on back of dryer?

Your dryer will run on 120 VAC but won't heat unless both sides of outlet are working. 

Turn breaker off and on. 

 

[16345Ed]

When you set it on timed dry and start it can you see or hear the timer moving?

[JSchell]

Thanks for your reply, I have already verified that 220 is at the block. I have also verified the timer moves as it will cycle and dry small loads, just no heat. 

[Captain Dunsel]

Put the timer on 60 minutes unplug dryer and look at the back of timer and you will see a Red wire terminal ( A ) and a Black wire   terminal ( C )   and check for continuity there if you don’t have any  Bad timer. Unplug those wires.These timers are junk.If timer is tested bad this is your part numberPart number: W10185970

[16345Ed]

Part number: 279816

I would test this next

[JSchell]

What meter reading should I be aware of for this to determine if this is the issue with the thermal cutoff?

[16345Ed]

Just looking for continuity. 

[16345Ed]

You understand you want to have power disconnected and at least one wire removed from cutoff to get a good test. 

Set your meter to resistance with tone. 

If you get no tone and/or OL on display it's bad. 

[JSchell]

I don't think my meter has resistance with tone. 

[16345Ed]

Set meter to lowest resistance setting. 

Touch probes together, you should see a very small resistance reading. 

Now do the same to the part being tested. 

If the part is good, has continuity, you will see a very similar reading as when you touched the probes together initially.

 

[JSchell]

Tested the Thermal Cutoff and it has continuity. What now?

[Captain Dunsel]

13 hours ago, Captain Dunsel said:

Put the timer on 60 minutes unplug dryer and look at the back of timer and you will see a Red wire terminal ( A ) and a Black wire   terminal ( C )   and check for continuity there if you don’t have any  Bad timer. Unplug those wires.These timers are junk.If timer is tested bad this is your part numberPart number: W10185970

Test the timer like i said.

[JSchell]

Checked timer at A & C with it set to 60 minutes and there is continuity. 

[Captain Dunsel]

Did you unplug those wires when you tested it for continuity?

[JSchell]

Yes, had to they were part of a terminal block. 

[Captain Dunsel]

Also have you tested this cycling thermostat for continuity in the back of dryer that has 4 wires on it? Just take the two large wires off and check for continuity.Part number: 3387134

[Captain Dunsel]

If that checks good put your meter to read voltage and check voltage at heater while running and see if you get 240 volts.If not check for 120 volts at the Red and White wire on the heater to ground.

[Captain Dunsel]

Also i see yours has this high limit thermostat on the heater have you check this?Part number: 3977767

[JSchell]

Checked timer at A & C with it set to 60 minutes and there is continuity.  Timed dry now produces heat but the auto sense dry does not

[Captain Dunsel]

1. Now that it working on time dry.We can do this either way.
2. Take a voltage reading from terminal A & C while the dryer is in the auto setting and you should read zero volts.
3. Unplug dryer and do the same reading using the continuity test from the same terminals . A & C. just like before. I would prefer the voltage test and see what we get.

[JSchell]

I did a reading earlier while it was unplugged and in auto using A&C but it showed no continuity, however when I look at the schematic it shows B&C should be closed during that cycle. I tested B&C and got normal continuity. Will try the voltage test.

[Captain Dunsel]

You got a bad timer.Both auto and time cycle uses those contacts for heat and the contact is making a connection sometimes and other times not.That type of timer has known problems.