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If the motor has oil ports you can put in a few drops of oil. If the motor has sealed bearings you will need to replace it.To fix a squeaky furnace, you need to add oil to the motor bearings. In some cases it could also be due to the fan, which would then need to be replaced.
Re tap the motor to a higher or lower speed, assuming it has that capability.
If I understand your question correctly, your indoor fan motor is the one not running. If that is the case, the gurgling sound you are hearing is the refrigerant being pumped into the indoor coil. You need a new motor. If this is a gas furnace, you need a 115V motor; if it is a heatpump, you need a 230V motor.
As the heat is coming from the burning oil, the furnace itself technically uses none. Assuming you have a central heating system that forces hot air through ducts to vents throughout the house (as opposed to old-fashioned steam radiators) it only requires a few watts to run the blower fan. Radiators typically use no electricity. The oil burner needs electricity for the combustion fan motor to operate and this fan motor is coupled to the oil pump which feeds the fuel to the electric ignitors that light it. You mention this is a furnace so there is also the indoor fan motor that blows the hot air into the living space. If this were a hot water boiler there would be an electrically power water pump instead of the indoor fan the furnace has.
yes it can fan
It is the speed you electrical drive device will run when it is just running but has not load. This would apply to: a furnace fan motor (or any motor) not connected to the fan a pump that is running but is not pumping anything a blender with no mixing container on top And so on
You need to find the wattage of the pump motor. This is found by multiplying the voltage of the motor by the amperage of the motor. Once you have this figure use it to find an inverter that can handle this wattage load at a 240 volt output.
No it is not advisable. Put it on AUTO. The furnace will decide when it is practical to turn the fan on. Really. No it is not advisable. Put it on AUTO. The furnace will decide when it is practical to turn the fan on. Really.
Could be a faulty fan motor, a faulty fan motor relay, a faulty fan motor temp switch or a blown fan motor fuse.
Look on the manufactures label on the fan. Find the amperage and voltage of the device. Multiply these two values together to find the wattage of the device. If the fan operates 24 hours a day, take the wattage and multiply it by the wattage of the fan. This will give you the total wattage that the fan will use in a day. To take it a step further take the total and divide it by 1000 and this will give you the kWh the fan uses. Find out what you are charged by the utility company and multiply the kWh by this number. This will tell you how much it costs to operate the fan for a 24 hour period.
360 watts
you can leave your furnace fan run continuos, it helps even the heat in the house, it also helps with condensation on windows.