Ok gang, I'm in need of some expert HVAC advice! IIRC, some of you used to be professionally involved with that before you retired.
I had an unnerving experience last night. I went out to the trainroom/workshop to check on a decaling job I'd started ~5 hours earlier, and the air felt warm and humid; checked the [indoor] thermometer and it showed 78*F. Usually it is 72-73, so I immediately checked the window unit by turning the temperature dial to a colder setting...no response. Then I clicked the fan speed selector to "fan only" and the fan came on - NOT what I wanted to see, since this indicated a dead compressor.
I've had this Friederich 12500-btu heat pump for 15 years which, according to internet HVAC experts, is 5 years beyond the expected [10-yr] service life of a window unit. So I went online to shop for a possible replacement. The prices were lower than I expected to see, which was good news, but the
availability was a different story - I would have to wait ~2 weeks before it could be delivered to my local Home Depot. [They apparently have to special-order 220-volts units like mine.]
In the meantime I went back out to the trainroom to set up a fan to pull in cold air from the adjoining laundry room as a temporary workaround. While I was doing this, I heard a familiar hum - and when I stepped back into the trainroom to investigate, I found the AC
working again...go figure[?]
Here is where I need the advice: I'm not sure if this unit is on the last leg of its service life, or if it was just a fluke occurrence. If it is close to permanent failure, I should probably go and start the process of ordering a replacement unit while this one is still actively cooling my space. OTOH, if that 3-hour "coma" has a plausible explanation, I do NOT want to replace a machine that has given me faithful service for 15 years, with something manufactured more recently that is likely of inferior quality - especially
not by LG, after reading what
Chet wrote about his terrible experiences with that brand!
A few more data-points: The filter is new [clean], and there was no ice on the coils. I don't know what more I can possibly do to fix it myself.
I eagerly await your words of wisdom...