Arrived on site customer stated that they have no heat. On previous visit found that the power wire for the relay box was loose, trimmed wiring and put back in place and everything worked for approximately 3 weeks. Customer is having same issue now and it appears to be the relay box itself is starting to fail. When pushing on the board it turns on and off so there is a loose connection on the board itself not the power wire entering the box. Recommend replacement of the relay box. Gave options and customer would like to
