Question about Goodman GMS80903BNA Heater
This code means the pressure switch is stuck open/closed. The pressure switch is located inside the unit by the induction blower (which is the smaller blower inside), it will have a small tube that runs from the blower housing to the switch itself. You can check this tube yourself by taking the tube off of the housing and blowing and sucking on the small tube and listening for the small "clicks" inside the switch. If the switch is making the clicking sounds, try to take a small wire or paperclip and clean the hole that the tube runs to on the housing as sometimes this gets clogged with dirt. If your switch makes no sounds, it will have to be replaced. Make sure your flue is not blocked by anything as this will also cause the same problem, just not as common. If your small induction motor doesn't seem to be turning very fast, you can also have a bad blower. Just some things to check out. Hope this helps and good luck!
Posted on Sep 28, 2010
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Posted on Jan 02, 2017
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could be three different things.
1. could be the crt itself as a tube with dfective phosphure wil do this
2. could be the vertical ic on the crt board
3. could be the focus pac. located in front of tv with 6 adjustment knobs on it.
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