Good morning! My DIY incubator has developed a problem that causes the temp to drop randomly and it doesn't stop until I "fix" it. I really can't take vacation until they hatch so I'm hoping one of my hens becomes broody! I can't permanently fix the issue while it's in use. Has anyone with a homemade incubator ever had their thermostat (hot water type) develop static where it causes the light to flicker and buzz? I unplug it and turn the dial back and forth a bunch of times and it stops but it comes back when it decides to. It's like an old radio knob static (potentiometer?) for comparison. I don't think spraying contact cleaner on it would be good for the eggs...