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freezer feeds cool air to fridge via a fan --possible causes ---circuit board failure--evap frozen over--evap fan failure --no power--condenser dirty --condenser fan fail--compressor failure --damage with freon leak---thermostat--
Turbo Air does not have a defrost heater they use cycling off to melt ice on the evaporator during normal cycles. If the top is open or the doors open the unit will not cycle off enough to melt the ice during cycling. If the thermostat is set too cold the evaporator will freeze over and if they are low on Freon they will also freeze over the evaporator. http://www.turboairinc.com/index.php/lanotattachments/download/file/id/178/store/1/tst-mega_1.pdf
first are the evap coils one big ice block? if so melt the ice and look for a air gap in the door gasket. the comp. turns on so the thermostat is sending the signal to turn on. on these the drain from the evap (cold part/ top) could be blocked. blocked drain, water sits, then freezes and blocks air flow
Is it freezing from the bottom up? If so check the drain is clear. If it's freezing all over, check the condenser is clean and clear and the compressor switches off when it reaches temperature. Lastly, check the door seals properly all the way round
Sounds like the contactor in the condensing unit is stuck. That is why it will not turn off when the thermostat is satisfied. If the inside air handler is not blowing and the outside condensing unit is running, then this will cause the inside coils to freeze up rather quickly.
The contactor is located in the outside condensing uni in the electrical compartment.
If it is sticking it will need to be replaced.
it sounds as thought the coils on the unit need to be cleaned, make sure it is draining, if it still freezes up after cleaning coils and checking for draining then the unit has a leak and needs to fixed/charged. Hope this helps tim
verify that condensers ain't clogged with dirt, condenser fan is running all the time and set the thermostat to the coldest setting. if temperature keeps rising suspect dirty condenser of deficient condenser fan. if compressor runs and no cooling after condenser cleaning. suspect a refrigerant charge problem. hope to be of assisit
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