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Re: The motor keeps turning on & off like it is...
It sounds as if it is overheating. there is a sensor inside all motors that shuts the motor down if it reaches a certain temperature. If your motor shuts down after running for a while then 15 minutes or so just comes back on then that is what is happening. Could be the result of not enough air around the motor to keep it cool, or something inside the motor making it work harder than it should like the bearings going out.
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Cooling fans not turning on, check to make sure the cooling fans are running when overheating occurs. Not enough coolant in the cooling system, check the coolant reservoir make sure the coolant is at at the maximum level when combustion engine is completely cool,if your coolant is low add coolant to the maximum level. (1)Start combustion engine, let it warm up but not over heat. Turn off combustion engine, when it cools completely the coolant reservoirs level will be lower . Add more coolant and keep repeating (1) until the coolant level stays the same after combustion engine completely cools down.Sensor that tells the cooling fans to turn on defective. Non functioning thermostat. Broken impeller inside Water Pump. Clogged radiator. Clogged water jackets in combustion engine. Broken drive belt. Radiator has something blocking the cooling fins(possibly a plastic bag that went against the cooling fins when driving)
do a compression test on cooling system just because no oil and water mix doesnt mean head gasket good ---keep an eye on fluid level possible can be burning the coolant also check flow new doesnt mean free from defects or improper installation [thermostat-water pump]
There may be a thermal protector placed internally within the motor or motor-compressor to protect the motor and motor winding's components from dangerous overheating that can cause motor failure.
This overheating generally occurs when the motor is overloaded, a bearing seizes up, something locked the motor shaft from turning, or the motor simply fails to start properly. A failure to start may be caused by faulty start winding's in a motor.
The thermal protector consists of one or more heat-sensing elements integral with the motor or motor-compressor and an external control device. The thermal protection is in place to turn the motor off when excessive heat is generated within the motor circuitry and keep it from burning up the motor.
These thermal protectors are reset when the motor cools to a safe operating temperature. There is usually a visible red button located on the wiring side of the motor, opposite of the motor shaft, but not always. In some cases, these buttons are reset manually.
Bummer..possibly to small of belt, causing the motor to work harder then normal. Or motor overheated due to yucky hair, string..ect.. Wrapped around belt..causing stress on the belt, which drives and turns w motor. If you smell burning..( and this is my experience) it usually means broken fried belt..dirty or binding junk..which can fry both the belt and sometimes burn out the motor. So keep all working prts clean
Suspect that the motor is not starting at all or is not coming to full speed which should release the start circuit. Try to turn the motor by hand, if quite difficult to turn, you need to find the cause. It could be the motor itself, so release it from any load and try for start. If the capacitor continues to heat, replace the motor. Hope this helps!
Yes, turn on your A/C your fans should come on. Check your fuses, and you can stright wire the fan, take 2 wires unplug it and run your new wires from each post on the battery to the wires at the fan. That will tell you if you have a good fan motor. If you think the fan motor is ok and good you will have to check the wiring to the fan and your water temp switch.
The overheating could be caused by a broken fan. The motor and the fan are two seperate pieces. When the engine heats up the fan comes on automatically. (keep your fingers out of the way) If the engine gets too hot and the fan does not come on, it could be electrical or a bad fan. If the fan makes noise but you don't see it turning, the motor could be bad or the plastic fan could be broken. Turn off and let the engine cool. See if the fan is attached to the motor. If the fan rotates freely it is probably attached to the motor. If it just wobles around, it is broken. Aftermarket fans are under $100.00. Original more like $200.00.