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I have a Trane whole house AC system. The outside unit was replaced I believe last year. The inside unit was installed circa 2010. I had a previous issue with the outside unit where a wire in a molex connector was loose and that was fixed by the installers for the outside unit. The installer for the inside unit ghosted me. The local guy who worked on the older outside unit before passed away a few months ago. I don't trust the competency level of the last local who checked on things.
We've been having thunderstorms so I haven't gone outside to see if the outside unit is kicking on or not. The thermostat is relatively new-- its a Honeywell one that I can connect to over the LAN. Info on what system I have in this thread: https://www.houserepairtalk.com/thr...-turned-to-heat-mode-for-a-couple-days.32182/
I recently changed the filters but I checked and they are still 90% clean (no buildup at all in the top 90% of the hallway filter-- only a little bit of lint at the very bottom). Poured bleach down the condensate line. Switched from automatic mode to off to cold. It tried to cool but the fan kept doing that thing. Set the fan to automatic. I did note that at one point the thermostat said "waiting on equipment". I turned it to Off mode and turned off the breaker for an hour and then turned it back on. It then tried to cool again but the fan will come on for maybe 3 to 7 seconds and then shut off. About 10 to 30 seconds later it tries again. I turned AC mode off but tried to have the fan run on Circulate or On but it still did the same thing.
I've read that the symptoms can be caused by low coolant, electrical fault, clogged filters, or capacitor failure. I've ruled out the filter I think. We have had a lot of power surges lately so I wonder if it caused electrical damage or if the fan motor is going out.
Any other tips on how to troubleshoot and what I can do?
We've been having thunderstorms so I haven't gone outside to see if the outside unit is kicking on or not. The thermostat is relatively new-- its a Honeywell one that I can connect to over the LAN. Info on what system I have in this thread: https://www.houserepairtalk.com/thr...-turned-to-heat-mode-for-a-couple-days.32182/
I recently changed the filters but I checked and they are still 90% clean (no buildup at all in the top 90% of the hallway filter-- only a little bit of lint at the very bottom). Poured bleach down the condensate line. Switched from automatic mode to off to cold. It tried to cool but the fan kept doing that thing. Set the fan to automatic. I did note that at one point the thermostat said "waiting on equipment". I turned it to Off mode and turned off the breaker for an hour and then turned it back on. It then tried to cool again but the fan will come on for maybe 3 to 7 seconds and then shut off. About 10 to 30 seconds later it tries again. I turned AC mode off but tried to have the fan run on Circulate or On but it still did the same thing.
I've read that the symptoms can be caused by low coolant, electrical fault, clogged filters, or capacitor failure. I've ruled out the filter I think. We have had a lot of power surges lately so I wonder if it caused electrical damage or if the fan motor is going out.
Any other tips on how to troubleshoot and what I can do?