Question about Carrier Heating & Cooling
Code 31 is a pressure failure...
Hello JT Beltran,
Cyber-"wisdom" has it as a PRESSURE SWITCH FAILURE
((DON'T short past it... unless you know what you are doing)).
Usually reserved for heaters with really filthy ... heavily clogged FILTERS... or blocked duct work (too many closed vents)
Once you have eliminated the obvious fire hazards of blocked AIR circulation, checked your filter is INDEED CLEAN &
unobstructed...YOU HAVE the (un-likely) faulty pressure switch...
Hope this helps.
Posted on Jan 03, 2017
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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
Is it possible the drain is plugged? The newer furnaces have a moisture drain and will shut down if they are blocked., shutting them down and restarting will reset fault, but will come right back if not fixed.
Posted on Dec 24, 2014
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