Question about Carrier Heating & Cooling
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Posted on Jan 02, 2017
heres the manual for the unit, look at pages 46-47 and theres a trouble shooting ladder schematic that asks what the systums are then gives the solutions for the fix. if you are still having problems you can request to talk to me and I'll be more than happy to help.
Posted on Jan 11, 2009
Code 33 is "limit is open or flame switch is open"
FIRST make sure the filter is clean. Turn off unit then turn back on.
if it works but then later gives you a 33 code then you might have a dirty a/c coil (if you have a/c) that will cause the limit to open. 1st try that
Posted on Mar 21, 2010
SOURCE: Carrier Performance Boost 80 has
this indicates fault 33, on inside of access panel will tell you faulty switch. i believe off top of my head is pressure switch open, this a safety switch to verify that inducer fan is working, several things besides a failed part can cuase this, there is a rubber hose going from the inducer fan houseing to the safety pressure switch, remove hose from fan housing and run a small stick ,wire or torch tip cleaner, down the acces port, calcium builds up inside the port and blocks the sampling of pressure, reassemble and try it, if this works add it to yearly maintenance could need new switch or inducer fan motor, these need to be replaced by a tech, also birds can block flue pipe
Posted on Feb 02, 2011
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