Sail switch open fault

The sail switch is an air flow detection device inside the dryer. This is a problem a qualified electronics technician will need to address.

Review figures 5, 6 and 7 on the installation instructions and compare with how you wired your installation.
The red wires are not used if you use a mechanical humidistat, (are used with electronic humidstat - supplies 24 volts and go to "hot", "commod" on humidstat). Yellow wired to "Hum" whether electronic or mechanical humidistat used.
If using sail switch or current sensing relay, cuts into one of the yellow wires. - One yellow goes directly to humidisat, then comes out of other side of humidistat & runs to to relay (or sail switch), and comes out of relay (or sail switch) and runs back to humidifier.

A sail switch is a Blower "on" proof switch. It's purpose is to prevent equipment such as air cleaners and/or humidifiers from energizing unless the blower is running. The sail switch literally has a sail that is put in the ductwork. When the blower starts, the airflow will push the sail so as to close a switch allowing accessory equipment to operate.

I hope you find this information to be very helpful to your moving forward. Let me know if you have any further questions, comments, or concerns.

Please leave a rating. :-)

Step by step procedures with pics can be seen at any of these sites. (just copy and paste the link in your internet address bar under a new tab)

www.fowlercompanies.com/.../AD-20%20SL20%20CG20%20D20%20STI-8%20dryers%20Gen%20II.pdf

www.fowlercompanies.com/.../SL31%2050%2075%20Dryer%20HotSurfaceIgnitorGas.pdf

Double check the circuit breaker for the dryer (Electric Neptune). Turn it off, then turn it back on. Its possible that the breaker may have tripped for some reason, but wasn't able to trip all the way.

Does the interior of the dryer get warm at all? You could have a 1 of multiple heating elements that has shorted. If no heat at all, the likely a heating element has opened up. Unplug dryer from wall (turn off circuit breaker first!). Use a ohm meter to measure and check continuity of the heating elements.

There may also be a sail switch in the air path of the dryer. The purpose of the sail switch is to keep the elements turned off until there is enough air blowing through the dryer. This helps prevent fires, as well as shrunken denim.

Thanks Marty for the info on the sail switch. We experience the same error code 43 problem. Seemed like the sail switch was stuck in the back position and didn't come forward when the fan started. So I bent a metal coat hanger and used it to pull the switch foward to "unstick" it. I tested the oven turning it on and off a few times and made sure that the switch moves forward with the blower fan starting when the oven was on, and moved back when the oven was turned off. Should be obvious, but make sure the blower is not running and the oven is turned off before you stick the wire hanger back there. A pretty quick and easy thing to try before calling the repairman.

Go to:

http://www.assuredparts.com/ThermadorRangeFaultCodes.html

F64 Lower oven cooling fan air switch not detected Replace air switch,replace cooling fan,check connections, check P6 on PCB control display.
f64 fault code is an issue with the lower oven cooling fan motor and, or (air) sail switch