no vacuum

[OldWest]

I have a Quadrafire 1200 freestanding, It has no vacuum. I have cleaned the stove from top to bottom, new control board, and changed the vacuum switch and hose, but when I bypass the vac switch it runs flawlessly. Is there something I am missing? Where could I be losing vacuum?

 

[DAKSY]

Is the vacuum switch installed correctly?

 

[OldWest]

Thank you for replying...Yes

 

[DAKSY]

Did you test the new switch?

 

[OldWest]

Yes sir.... I have a handheld vacuum pump for applying vacuum on cars. I'm a pretty fair mechanic, but this stove is my nemesis.....

 

[johneh]

Is the hose nipple on the stove clean?
use a wire like a paperclip to check it. Are the door seals good dollar bill test

 

[OldWest]

Is the hose nipple on the stove clean?
use a wire like a paperclip to check it. Are the door seals good dollar bill test

I can blow through the tube, but I did run a paperclip through it......no help