Heat pumps have a reversing valve in the outside unit. You are hearing a balance of refrigerant pressures when the reversing is energized or de-energized.
No.
You can identify a heat pump by checking your heating and cooling system. Heat pumps provide both heating and cooling through one unit, unlike traditional furnaces or air conditioners. If your system has an outdoor unit that runs during both summer and winter, it is likely a heat pump.
It's broken.
it depends if you buy a certain 1
If you have it in the defroster mode, the AC pump will run. This is normal.
Imagine a window AC unit installed backwards, rejecting heat indoors while air conditioning the world, this is a heat pumps heat mode. As the unit is air conditioning in the cool outdoors eventually the outdoor coil will ice up requiring a defrost cycle, defrost is the AC mode except the outdoor fans off to assist with the defrosting. A defrost cycle is time and temperature initiated, time or temperature terminated.
First, is the thermostat in he correct position for cooling? Is there a red light glowing on the thermostat? There could have been a power surge or outage and the heat pump needs to reset. Turn the power off to the heat pump at the control panel for a couple or minutes then back on again to reset the heat pump.
The purpose of a thermostat on a heat pump is to regulate the temperature inside a building by controlling when the heat pump turns on and off. It helps maintain a comfortable indoor temperature by sensing the ambient temperature and signaling the heat pump to adjust its operation accordingly. The thermostat allows users to set their desired temperature and ensures that the heat pump operates efficiently.
Without your make and model I can tell you , Heat, Cool, Fan On or Off
A heat pump will do this, a furnace should not. Are you sure you have a furnace?
Check the link for answers to a lot of questions on wells and pumps. The pressure switch is the device that controls what pressures the pump will turn on and off at. This is not to say that the pressure switch makes pressure. Pressure has to be made by the pump.