Handled the issue. Switch was replaced. Very hopeful that was the issue. We will see when we go back to the cabin.
Install Tigerloop ultra high efficiency oil filter for oil furnace.
Clean and service oil furnace. Found bad parts and replaced.
Thermopride trailer furnace no heat. Diagnosis of bad ignitor. Replace ignitor. Unit is now heating.
Clean and service air conditioning. Lennox furnace with AC. Replaced air filter