Cool cat ac/Heat pump, not cooling
My cool cat unit was not producing any cool air in the ac mode last summer. Does anyone have experience with these? Do they need a recharge periodically? The compressor would come on but no cold ai...
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My Cool Cat exhibits the same or a similar problem when switching from heat mode to cool mode. I've discovered, thru trial and error, that just nudging the thermostat to the point where the cool mode should be activated doesn't always work. The unit does come on and it's not providing heat, but it also isn't cooling. When I put the thermostat into the coldest point then the Cool Cat switches into cool mode and runs fine. At that point I can set the thermostat to any desired temp and it will cycle correctly as long as I don't put it back into heat mode.
My theory is that the signal from the thermostat calling for cooling is somewhat variable (either resistance or voltage) and when the Set Point is close to ambient the signal isn't strong enough to cause the Cool Cat to activate the reversing valve that switches it between heat and cool. Putting the thermostat into the coldest point probably provides a stronger signal.
My theory is that the signal from the thermostat calling for cooling is somewhat variable (either resistance or voltage) and when the Set Point is close to ambient the signal isn't strong enough to cause the Cool Cat to activate the reversing valve that switches it between heat and cool. Putting the thermostat into the coldest point probably provides a stronger signal.
