I had one installed eight years ago when I bought my house. I’ve used it to heat the entire place, but this winter, I struggled to maintain even 20°C indoors on really cold days.
Well, today I finally brought my air compressor inside and gave the guts of the indoor unit a thorough blasting - and now it feels like an oven in here. I’ve been lowering the thermostat all day, and it’s still way too hot. It literally feels like it’s putting out twice the heat now. I was expecting a slight improvement, but nothing like this.
No one is telling you to power wash or scrub. If you rinse it often enough you’ll be fine. If a hose ain’t doing it for you, you are better off getting an HVAC tech to use their special cleaner that is only sold to HVAC techs
No, but some people get some carried away ideas when they hear “clean that machine”.
…or to anyone who can walk into a big box store and grab a product off the shelf.