Installing a sump heater or cold weather use.

It requires a 2 pole ganged breaker to meet code and guarantee the breaker is on two legs of the single split phase service. That in itself doesn't explain the 120 volts at the heater element.

Replace the two single breakers with the appropriate 2 pole ganged breaker. Before connecting the feed to the heater, turn on the ganged breaker and measure voltage across the breaker. If not 240VAC then there is a problem at the breaker panel.

If there's 240 at the breaker then you've somehow wired the thermostat incorrectly but can't imagine what you did.

depends on the manufacturer. go to manufacturer internet site with model and serial numbers for parts info. if you are talking about a system other than rheem,trane,lennox. it is usually in the 1050 rpm, 220 volt,1/3 hp and you could use a rescue motor to replace it with. reversible motor.

R22= 70-80psig
R410a=120-130psig
Depending on many variables such as blower speed, coils clean, indoor/outdoor temps.

E5 indicates excessive temp. of the outside coil if on cooling, OR excessive temp of the inside coil in.

Try cleaning it (them if inside one too), with dishwashing liquid and spray outside hose.

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

A normal 2phase 220 or 240 V unit usually requires
2 wires and a ground. If you know what a contactor
is you will notice that only two line voltage wires can
be inserted into it and the ground wire to the equipment ground.

If you have a 3phase unit you would need 3 wires and a ground. Usually on the back cover of the unit it will
show the wiring diagram

check your comm board you need to make sure both are set to the same settings

Those terminals on a ductless split are reserved for the communication wires from the out door to indoor unit. L L N should be line 1, line 2, and neutral (ground) there should be a 1 2 3 N terminal block in the indoor unit also, those terminals would most likely be for the communication between the two units.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/cody_17f08cf8e340c06c

36k-car-ms Key Features AC Type: Split System Additional Features: Ductless Cooling Capacity: 36000 BTU/hr Electrical Requirements Voltage: 220It is a 3 ton aprox 550 sq feet per ton is required