Question about Carrier 38CKC042 Air Conditioner
The Carrier comfort zone thermostat displays the SF 03 message on all 3 zones.
Go to panal and reset control. Small reset button on control board. Let me know if it clears.James
Posted on Mar 25, 2010
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Posted on Jan 02, 2017
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Comfort Zone heaters do not have a display board, they
only had thermostat knobs.
Is it possible that you have a different model of heater?
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