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First Co Fan Coil Unit

1783 Views 8 Replies 5 Participants Last post by  supers05
Hi. I have a First Co Fan Coil Unit in my condo. Model no. 24RAOT-3.

The unit blower turns itself on for about 30 seconds at a time when the thermostat is in the OFF position. It does this randomly and without warning.

Any ideas how I can troubleshoot this? thanks!
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I took a look at the wiring diagram. When the fan runs for 30 sec does the pump come on too?
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