Clair Co, IL). 

Vacuum coils on rear side of refrigerator.

As the result, coil froze and the pipe couldn't drain and water leaked.)Costed me $50 to rent a dehumidifier, all day to clean and mop, and then $50 for HVAC tech to check the system.I called and told him what happened, he insisted he had changed the filter regualrly and did so just two months ago.

If I was managing the properties myself and had the time required, it would certainly be somewhat cost effective (ignoring the cost of time), for me to replace stove coils, fix a compressor on a fridge, etc.  

@Joe KatoMany new gas boilers don't have domestic coils, therefore you can shut down the boiler in the non-heating months and just run the gas hot water heater.We've done both oil to gas conversions as well as hot water to hot air.

Speaking of build-outs (these are small wood that thickens the cut-end of the counter): it's easiest to nail these in place with small finish nails in an air nailer.

The last time I did the walk through- in the last month- they had installed things that they didn't ask permission for- I told them to remove it. and the AC coil was very dirty, so we had a conversation about that.

I do prefer GE self cleaning coil top ranges over whirlpools though, better price point seem better constructed. 

This list includes but is not limited to:Reprogramming a remote for cable/hdtv.Flipping a tripped breaker and finding the cause.Changing the agitator dogs in a washing machine.Replace a belt in a vacuum cleaner.Change the flapper and fill valve in a toilet.Replace a seat on a toilet.Put a bed frame back together.Changer filters on a CH/A unit.Clean evaporator coils on a CH/A unit and refrigerator.Unclog a sink, toilet or shower.Replace washing machine water supply lines and/or hose gaskets.Change P-trap under a sink.Change wax ring under a toilet.Adjust a screen door locking and closing mechanism.Know how to change a ballast in a light fixture.Know how to put a sliding door back on track.Know how to reboot a modem and operate a security camera.Know how to change door locks and deadbolts.Know how to re-caulk a tub and shower surround.Know how to change a CH/A wall thermostat.Know how to remove a broken light bulb base from a socket.Know how to replace a defective water shut off valve.That's just the things right off the top of my head. 

It is an electronic water conditioner that requires no plumbing work - it wraps coils around the main water line supply in the house and breaks up the minerals so they don’t stick and build up.