Gas Valve Solenoid Coil

Dryer Repair
1

How do I know if the Gas Valve Solenoid Coils are bad and are the cause to my dryer not heating. I tested continuity on Ignitor, Fuse, Thermstat, thermocoil, and heat sensor. All show continuity.

Woud i get a continutiy reading if I was to test from one coil to another? I currently do not get a reading and believe this is where my problem is.

2

Hi Teewaddy

What parts did you call “thermocoil” and “heat sensor”?
The power to the igniter comes through:

[CENTER]The thermal fuse[/CENTER]

[CENTER][/CENTER]

[CENTER]The cycling thermostat[/CENTER]

[CENTER][/CENTER]

[CENTER]The hi limit thermostat[/CENTER]

[CENTER]The flame sensor[/CENTER]

[CENTER][/CENTER]

[CENTER]The holding and the secondary gas valve coils[/CENTER]

[CENTER][/CENTER]

[LEFT]All of these parts should be normally closed. The holding and booster coil (the one with the three terminals) should be checked across outer terminals.[/LEFT]

[LEFT]Good luck.
Gene.[/LEFT]

3

Per your question below.

"What parts did you call “thermocoil” and “heat sensor”? I checked all of the below that you listed below. All tested normally closed or as I call it “received a beep” from my ohm meter testing for continuity. Is this true?

The Thermal Fuse, The cycling thermostat, The hi limit thermostat, and the flame sensor all beeped/showed continuity.

If I could clarify your next statement “The holding and booster coil (the one with the three terminals) should be checked across outer terminals.” Do you mean that I shoud have continuity from the 3 tab coil over to the 2 tab coil? Because I dont receive a beep from my ohm meter when I check any combination from the three to the two tab coil.

Thanks for clarifying for me.

4

Both coils should be checked separate, one at a time. The one with the three terminals should be checked across outer terminals.

Gene.

5

[QUOTE=Gene;4621]Both coils should be checked separate, one at a time. The one with the three terminals should be checked across outer terminals.

Gene.[/QUOTE]
Gene, how many ohms is too many across the coils, I get about 500 to 1500 ohms with my fluke digital meter?

6

Hi pmmr

What is wrong with your dryer? What is the complete model number?
Please post it as a new thread.

Gene.