Kenmore dryer 417.71712510 large flame

[dsapp78]

My kenmore 417.71712510 propane dryer stopped heating one day. I traced it down and replaced the thermal limiter. Now it fires up again,  but the root of the problem is now evident. The dryer is a literal flame thrower. I check the regulator (55), the solenoids resistance. Everything look right. What's the next step in troubleshooting? 

[Budget Appliance Repair]

Needs to be converted to Propane/LP gas correctly - has wrong natural gas orifice and/or regulator not blocked open with blocking pin for LP gas.

The correct orifice size number for most LP gas dryers is usually a 52 or 53 - the NATURAL gas orifice will usually be a #42

Here's the complete correct conversion kit to change this dryer to LP gas

Part number: 134391000

http://www.appliancepartspros.com/ShowPartImage.aspx?forumimg=134391000

In the center of this parts picture, the two brass parts, (the lower is the LP orifice and the upper is the LP regulator blocking pin.

Notice the tall brass top of the blocking pin - if this hasn't been changed the NATURAL gas one is just a very short cap without the pin, very easy to tell the difference without taking anything apart.  The difference is obvious if you know what you are looking at.

Edited July 27, 2023 by Budget Appliance Repair

[dsapp78]

It was converted to propane several years ago and has been working fine since. This model uses a 55 for propane and 45 for NG and the 55 is installed. It may be that the blocking pin has broke.

[dsapp78]

Nope, blocking pin seems fine. Operates fine too. What next?

[dsapp78]

I'm really at a loss here. Could the regulator have gone bad? Would the solenoids have anything to do with this?

[dsapp78]

Anybody?