The small box attached by wires to my honeywell ac/heater unit is making a ticking sound. It appears to be a power source or is it. Any advice?

Exact model number?

Is this a furnace or a small heater?

It is a honeywell ac/heater unit... furnace

Exact model number?

hvac1000 I'm trying. Had to climb in the attic lol... I was given documentation I think on everything in the house but the ac/heating. I hope this is it... it's scary up there. Model 58STA070. Honeywell uses 16 x 25 filter F100f2005. Little ticking box is labeled honeywell too. Has one wire (brown) running to it. Has wires capped by orange wire caps. It's sitting to the side away from the furnace on some ductwork.

More research, whole house ventilation. Damper/motor got issues. Hmmmm

Hmmmmm indeed

Hmmmm indubitably. :D

I wish you would have gotton the numbers off that Honeywell box. All the numbers you can find because that is a add on and not part of the furnace. If you can get the exact numbers off that box I will look it up for you and see exactly what it is. Then you can decide if you want to fix it or have someone else fix it.

This number is your furnace for your records (( 58STA070 ))

thanks... I'll make another adventure to the attic and bring back my findings :=)

Honeywell ventilation kit.

There were no part/model numbers on it. My system is set up by numbers. Names will not help. If it is what I am thinking of it is obsolete but some parts might be available.

Does it tick all the time or only when the furnace is running?