Intertherm furnace model E2EB-012HA will heat and run normal for awhile then all of a sudden quit heating or blowing. I will wake up or come home from work and the house will be cold. The thermostat will show that heat is on and should be running but temperature in home is way below the setting. The only fix I have found is to turn breaker off for ten seconds and then back on. The furnace will then come on and act normal for awile longer then do it again. I have replaced the breaker in the box and no difference.