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Roper Gas Dryer RGX3514RQ0 Does Not Work in Auto Sense Mode

roper gas dryer auto sense

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27 replies to this topic

#21 RegUS_PatOff

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Posted 06 April 2012 - 08:29 AM

... parts list and it listed the operation t-stat as: "660039 Thermostat, Internal Bias", so I ASS U MEd that it had the bias heater.

yes, that is the correct Thermostat (with internal bias heater)
but that model doesn't use the "bias heater" (to fool it into turning OFF earlier)
Heater turns OFF at Thermostat actual rated temperature
.

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#22 tking1375

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Posted 06 April 2012 - 09:55 AM

OK, thanks DADo, this confirms what Reg was saying earlier. You also confirmed what john was saying earlier, a very simple mechanism. I guess it ain't broke. Domo arigato wise ones from a most :imnotworthy: humble grasshopper.

#23 RegUS_PatOff

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Posted 06 April 2012 - 10:33 AM

OK, the temperatures should be the same in Timed Dry and Auto Dry.
(empty load)
If the temperatures are both too low (after running the Dryer for awhile)
... then there may be some other simple problem.
.

one of my video productions: “Easter Seals: Walk With Me”

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#24 Budget Appliance Repair

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Posted 07 April 2012 - 05:53 AM

Posted ImageBudget Appliance Repair, on 06 April 2012 - 04:42 AM, said:
... parts list and it listed the operation t-stat as: "660039 Thermostat, Internal Bias", so I ASS U MEd that it had the bias heater.

yes, that is the correct Thermostat (with internal bias heater)
but that model doesn't use the "bias heater" (to fool it into turning OFF earlier)
Heater turns OFF at Thermostat actual rated temperature


660039 is an old part# which converts to new part# 694674 which is a replacement Adjustable dryer cycling thermostat kit L135-155 without a bias heater. I don't believe the original 660039 had a bias heater in it either, (probably just kind of standard parts list wording since most do have the bias heater?).
William Burk (Willie)
Willie's Budget Appliance Repair
Eureka, CA 95501

#25 RegUS_PatOff

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Posted 07 April 2012 - 09:27 AM

... 694674 which is a replacement Adjustable dryer cycling thermostat kit L135-155 without a bias heater.
... I don't believe the original 660039 had a bias heater in it either, .

1) correct, although he claims he gets different temperatures in Regular and Auto-Dry ? ? ?
2) yes, it does, although the Bias Heater isn't connected on that model, as shown on the wiring diagram (link) I posted earlier.
.

one of my video productions: “Easter Seals: Walk With Me”

every day is Down Syndrome Awareness Day
"A Child Is Waiting" . Burt Lancaster . Judy Garland . 1962

RegUS_PatOff > www.youtube.com/watch?v=oPAY2LsKVEw

#26 tking1375

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Posted 08 April 2012 - 11:29 AM

Reg is correct I did get two different temperature readings in auto dry and timed modes.

Just to reconfirm my results:
  • Dryer heat was read with an empty load in both modes.
  • I tested both auto dry and timed dry modes through 4 cycles.
  • Thermometer was clamped onto the back of the dryer vent to avoid inconsistent readings, with the tip suspended inside the vent at the center of airflow. No clamp contact was made on sensitive areas of the thermostat (just up at the dial).
  • Timed dry was consistent through all 4 readings between 120 and 175 degrees.
  • Auto dry was less consistent and ranged between 120 degrees and 142 degrees, but never went above 150 degrees and only got to 134 degrees during one reading before shutting off.
  • Visual inspection through the observation port confirmed the cycles were shorter in auto dry mode.
I'm aware that something must be responsible for this, but also accept the workaround of just using the timed dry mode or auto dry in the "more dry" setting.

#27 RegUS_PatOff

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Posted 08 April 2012 - 01:37 PM

.... I'm aware that something must be responsible for this,

Did you buy this Dryer new ?
possibilities:
1) not the model number posted
2) Dryer was repaired at some time and Timer (and/or other parts) were replaced with different part numbers
.

one of my video productions: “Easter Seals: Walk With Me”

every day is Down Syndrome Awareness Day
"A Child Is Waiting" . Burt Lancaster . Judy Garland . 1962

RegUS_PatOff > www.youtube.com/watch?v=oPAY2LsKVEw

#28 tking1375

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Posted 09 April 2012 - 07:59 AM

Yes, in fact the dryer was bought used and not all that long ago. I know I copied the model number down correctly, but I really like the theory that someone has previously done some repairs and potentially installed a non-standard part! That seems most likely to me and helps explain why things aren't quiet as they should be. Nice work!





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