Another great learning experience
My sister called me because her furnace was making a weird noise even though it wasn't calling for heat. Low and behold I find one of the heater packs kicking on and off. It appears the sequencer contact may be stuck keeping power to it. Well the top coil pack is a 9.8k. I noticed the bottom coik pack is a 4.8k and isn't even wired up. I'm assuming that it wasn't wired because it is a 51, 000 btu furnace and she lives a singlewide trailer. 51, 000 btu would be a bit much I think. Would I be correct? I removed the wire from the bad sequencer and tried to hookup the bottom coil. Low and behold that sequencer wasn't closing to energize the heater. Well in the mean time I just left her with one 4.8k running until I get the sequencer assembly. It seemed to be keeping it warm when I left. I got to thinking after I left maybe I should check that heater out too incase the constant voltage took it out from repeatedly trying to start with no airflow. I would think the limit would prevent that though. Anything I may have missed? I went to school for HVAC, and I have ran quite a few a/c calls for friends and family. It's rare I get heating calls. I just fixed my cousins heat pump last week too
Edited by BryanS, 16 December 2013 - 02:39 AM.