Added a blower

[Day]

I have a Wood boiler that was built similar to a Central boiler unit. I added a blower, that's piped through the door. Once the blower shuts down & intake flap closes. The stove begins scavenging air through the small cooling holes in the motor housing. I duct taped the holes shut, it works great. 2 holes left open allows enough air to keep fire from going out when stove isn't calling for heat. I need some type of solenoid valve in front of the blower to kill the draft leak. Any ideas? Thanks!

[samandothers]

No ideas for ya but wanted to say welcome to the Forum!

[E Yoder]

Sounds like you need a flap downstream from the blower lifted by a solenoid.
Some pics would help.
Leaving the cooling holes taped shut could overheat the fan motor.