My hydronic heating system went down so called the installer, Weathermakers. Service tech cam to conclusion my control panel was at fault for $1500 plus a new transformer $500. Replaced yet system still not working. Second tech checked and after 2 hours couldn’t solve problem. I replaced a faulty $30 sensor myself and solved the problem. 2 techs and many $ later neither could find the faulty sensor. No positive feedback from Weathermakers only excuses. No reduction in cost to me for “diagnosis”. Not happy. Original install many years ago cost me over $30000 through same company.