Question about Heating & Cooling
if your problem has existed since the begining of installment it could be a return/ thermostat placement problem. if the return is to close to any supply vents it will run like that and your thhermostat will read like that
Posted on Apr 25, 2008
verify if you have separate units for each floor.
the ones working could be a complete separate unit from the one having problem.
look at the condensing units you got outside , how many are there?
if you have 3 units outside and you have 3 thermostats, then each thermostat is controlling individual split units.
we have to concentrate on the one that is not cooling. give me the details on what is going on with problematic one.
is the outside unit running?
is the outside fan running?
can you distinguished if the compressor is running the same time as the fan?
tnx 4 using fixya,
Posted on Sep 14, 2008
check with the company u brought it from and check if you have not put the correct conector to the right temals on the back of the switch.
Posted on Jun 09, 2009
getting heat in the cooling mode leans toward the reversing valve in the outside unit. it changes the flow of refergerint so that the hot air you get outside in the summer is blown inside in the winter. another possibility is that the reversing valve isn't getting 24v check to see if you have 24v at O and C either at the t-stat, furnace, or the outside unit. if you check at the furnace rember the safty switch for the lower door if that switch is open you will have no power. i would look at the t stat first if you have 24v there go to the outside . 24v present outside will mean a bad valve or board, no 24v means a bad or broken conection in the control wire between the stat and the outside unit(usally the orange wire)
Posted on Jul 11, 2010
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