I wonder why nobody every thinks a unit needs to breathe. Ho called me to check it out as soon as I went out the back door I could hear the compressor straining and the fan suffocation for air flow. Felt like 150+ degree air coming out of the unit. Dryer vent right over the unit WTF. He also wanted me to check the heat exchanger had a nice large crack in it. I disabled it. told the ho not to use it. sorry i could not get a pic of heat exc.
As a safety question, since you are in my area, did you disable it by cutting electrical and control wiring to the furnace (leaving the blower able to function), along with removing the physical link between furnace and fuel source?
And, to cover yourself, did you get the customer's signature on an invoice stating he had been informed of the crack in the heat exchanger and the possible death and injury it could cause, and have him acknowledge he is aware that you disabled and removed the fuel source from the furnace.
Look at the wall of shame at some of the stuff folks have done to get their heat running. Making sure you are covered will help avoid the board and their friendly ways from visiting you.
Just a point of information. We fitters in Ontario do not have to remove the fuel source. We only need to shut off the disconnect and red tag the furnace. Part of the red tag is notification to TSSA that govern our trade. They have a record of the red tag. The customer gets 30 days to rectify the situation or they get there gas cut off by the supplying company.
You can spray "down" the outside of the coil and get most of the crap off. Then spray it from the inside out to get the rest. I see no need to use any cleaner on that, it doesn't look impacted.
There is a unit at my church with a condenser coil like that. Maintenance guy won't do anything about it or have it cleaned/serviced. I'm not looking for that unit to last but a couple more years.
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Originally Posted by John Markl
