Hi Everyone, First, thanks for taking the time to read. Hopeful there's a genius here that can solve this; this forum has always been a big help. Just recently purchased a VanEE ERV 90H-V ECM and the platinum wall module to go with it. I programmed it to be off at nights, and doing some...

Furnace is a GrandAire combo with AC. Thermostat is a Hunter weekday/weekend programmable digital thermostat installed last year. FWIW, I rent this house. Started 3 days ago. Furnace was blowing nothing but cold air and I couldn't shut it (the furnace fan) off at the thermostat. I reset the...