check to see if your lowon freon
series
Any compressor has an internal overload which may go off due to bad condenser fan motor, clogged condenser, restriction of air, the only way to test is to check the condinuity between terminal common start and run if common open shut off system and allow 24 hours to reset if it doesn't reset may need new compressor
petrapkg unit condnserfan motor
overheating of the c.motor and will turn to stop or burn the winding of the compressor motor due to over heating
There is a short somewhere. Probably the condenser fan motor or the compressor. Time to have it checked out by a competent, trusted techenician.
Check blower motor fuse Check to see if compressor is working
MOST LIKELY A COMPRESSOR SHORTED TO GROUND IF 3 PHASE. COMPRESSOR START PARTS OR SHORTED COMPRESSOR- SINGLE PHASE. COULD ALSO BE CONDENSER FAN MOTOR OR CAPACITOR ASSUMING IT STARTS WITH THE PRIMARY COMPRESSOR. WITH POWER OFF, CHECK WITH OHMMETER EACH COMPRESSOR LEAD TILL YOU FIND SHORT (LOW RESISTANCE READING). IF THREE PHASE, IT IS POSSIBLE TO REVERSE MOTOR DIRECTION IN AN ATTEMPT TO FREE UP A FROZEN COMPRESSOR (RECIP ONLY, NOT FOR SCROLL IN THAT THEY ARE ROTATION SPECIFIC). ONCE YOU GET IT GOING OR HAVE COMPRESSOR REPLACED, FIND OUT WHAT CAUSED FAILURE AND FIX IT. IT WILL JUST HAPPEN AGAIN IF YOU DON'T. THEY DON'T JUST WEAR OUT IF MAINTAINED PROPERLY. lc
a synchronous condenser is over excited synchronous motor under no load
a fully welded or serviceableIn hermetically sealed compressor, the compressor and the motor are enclosed in the welded steel casing and the two are connected by a common shaft. This makes the whole compressor and the motor a single compact and portable unit that can be handled easily. The hermetically sealed compressor is very different from the traditional open type of compressors in which the compressor and the motor are different entities and the compressor is connected to the motor by coupling or belt.Construction of the Hermetically Sealed Reciprocating CompressorIn hermetically sealed compressor, in one side of the enclosed casing the various parts of the compressor like cylinder, piston, connecting rod and the crankshaft are located. If it is a multi-cylinder compressor, there are more than two cylinders inside the casing. On the other side of the casing is the electric winding inside which the shaft of the motor rotates. This motor can be single speed or multi-speed motor. In hermetically sealed compressors the crankshaft of the reciprocating compressor and the rotating shaft of the motor are common. The rotating shaft of the motor extends beyond the motor and forms the crankshaft of the hermetically sealed reciprocating compressor.All these parts of the hermetically sealed compressor are assembled and enclosed in a strong and rigid casing made up of welded steel shell. The steel shell comprises of two half rounded steel bodies that are welded together to form the casing for the hermetically sealed compressor. In some cases the two halves of the shell can be bolted together instead of welding, which permits easy opening of the casing in case of compressor burnout.The hermetically sealed compressors have inbuilt lubrication system for the lubrication of the piston and cylinder and crankshaft. The lubricant also acts the coolant for the piston and cylinder. Additionally, the cool suction refrigerant also offers cooling effect. Externally, the casing has refrigerant suction and discharge connections that are connected to the evaporator and condenser respectively. There is also socket for the electrical connection.The typical condenser unit with the hermetically sealed compressor is shown in above fig. Such condenser units are called as hermetic condenser units. In the other image various parts of hermetically sealed multi-cylinder reciprocating compressor are shown.Types of Hermetic CompressorsOne of the most popular types of the hermetically sealed compressors are the reciprocating compressors. They were the first to be used as the hermetically sealed compressors are still being used widely. These days the vane type of rotary compressor has become more popular. It is considered that the rotary type of hermetically sealed compressor consumes less electricity, makes lesser noise, requires lesser maintenance, and is cheaper than the reciprocating type of hermetically sealed compressor. This is because the rotary compressors has less frictional parts and have only a rotor. The centrifugal types of hermetically sealed compressor are used for the large units.
Most commonly, the compressor is not working, the evaporator is blocked by dirt, the condenser motor isn't woring. A trained technician needs to evaluate
Read the tag on the condenser, it will be noted as LRA. Be sure to check the LRA for the fan as well and add them together for the total. If it is not listed on the tag it will certainly be listed seperately on both the compressor and the fan motor. LRA = Locked Rotor Amps.
The compressor has nothing to do with the delivery of air. The blower motor takes care of air delivery. That's what you need to check