My heat pump has ice on it all the time what can i do

if your drain pump is the one you plug your ice maker into and then the pump into the wall plug the pump is full and will not let the ice maker run. must be something wrong with pump

On a water-cooled system, by design the heat from the machine is being transferred to running water that carries the heat away. Some installations pump this "waste" water to a heat-exchanger or cooling tower (typically on a rooftop), where the heat is transferred again, this time to the air. The water with the heat removed is then recycled back to the machine, where the process is repeated continuously. There is thus no "wasted" water.
If your cooling water is just running down the drain, that's a terrible waste of water and money. Try to find a way of recycling the water by removing the heat and re-using it. Think of ways to use the "free" heat in the water.
Alternatively, buy a proper rooftop heat exchanger and pump the water through it, or, get an old car radiator or air conditioning condenser and a decent blower, and make your own.
Remember that your machine needs constant cool water in order to avoid overheating the system.

Why does my heat pump ice up in Winter?
Heat pumps naturally ice-up in the winter. It is normal for the entire coil to be covered in a white frost and even light ice, during cold weather conditions. However, it is bad for the entire unit to be encased in ice. This indicates ductless heat pump problems which should be addressed quickly to save energy and avoid serious damage to your ductless unit. These systems should periodically go into a defrost cycle. This keeps the unit running efficiently. If the coils are blocked by ice, proper heat transfer between the coil and the outside air will not occur.
How does the defrost mode work?
When the mini split heat pump goes into defrost, the reversing valve inside of the outdoor unit is energized, switching the system from heat to the air conditioning mode. The outdoor coil becomes the hot, the indoor coil becomes cold, and both - the outdoor and indoor fans shut off. This allows the outdoor coil to melt accumulated ice. When the built-in micro-computer analyzes that all ice have been melted, the heat pump heating system goes back to heating mode.
A cloud of water vapor may be seen rising over the outdoor unit and a "whoosh" sound can be heard as the refrigerant reverses direction. The entire process usually takes up to 10 minutes (depending on conditions).
How often does the system goes into defrost mode?
Ductless mini-split heat pumps have different ways of determining when to go into defrost. The built-in microcomputer determines outdoor temperature, refrigerant pressures, and several other factors. In colder temperatures the system will go into defrost more often than in warmer.
If a ductless mini split heat pump is severely iced-up in the winter it is possible that it isn't defrosting (though there could be many other causes). Let the manufacturer certified technician check your system

could be numerous issues that stop machine from working
but as its outdoors i would remove condensate drain pump
and make it a gravity drain
if drain pump fails will shut down power to unit

I have no idea if this will work, but can you turn on the air conditioning for a few minutes?
If this is a refrigeration heat pump, by turning on the A/C the coil will get warm to try to remove heat from the house.
Gary

it sounds like it may be iceing up, it takes awhile to thaw then kicks back in and runs until it ices up again, remove access cover, clean condensers gently and thoroughly, don't bend the fins make sure freeze sensers on condensers are making good contact

The outside fan may run if the unit is in defrost mode this is normal for most heat pumps it is there way of trying to keep the outside unit from staying iced over so the next time the unit runs it will have air flow through the coil and the ice will not be there to prevent air flow.

Defrost cycle is to allow frosy or ice to melt down and not restrict the output air. The thermostat is set too low and in high humidity ice forms quickly restricting the air flow. tur up the thermostat and let the room cool gradually.

It sounds like it is just going into the defrost cycle. Go outside and see if it is iced up. If it is, it reverses itself to melt the ice. Heat strips should come on if unit has them