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Re: master cool blower motor?
If this is a regular roof mounted unit then I will suggest that the motors internal clutch could be failing. If your unit is ducted then it could be something in the duct like paper. Sometimes as the wind flows through flex ducting it can also make this sort of noise.
If this is a portable Evap cooler then there is a rod that extends from the main
blower to the pump assembly. You can probably see it turning with a
flash light. If it is wobbling then it could be the pump or gear. As
usual make sure the unit is clean and all the water ways (including the
hoses) are clear of obstructions.
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Its possible but you might try a little diagnostics first. Put your thermostat in the off position and the fan switch in the auto position. Make sure the switch on the air handler inside is on. Now have someone stand by the blower while you switch the fan switch back and forth from auto to on. If the person at the blower hears a clicking sound from inside the blower cabinet you probably have a bad motor. But if you hear nothing it probably means you don't have power. Check the blower door to make sure its tight and the safety switch is depressed. The wall switch should be tested. Don't have any easy ways to check for power without a volt meter. Hope this helps good luck.
The evaporator coil is probably frozen too.The fan might of failed and it caused the evaporator coil to freeze along with the suction line. Based on what you said about hearing a noisy blower motor noise. I believe the blower motor failed and caused your problem.There's only a few things that cause freezing; 1. blocked or no airflow 2. low or loss of refrigerant. You have no airflow, most likely because of a defective blower motor.
Hi, Sounds like the motor is going bad in the air handler/furnace now... Open up the blower compartment and spin the blower by hand with the power off...you should be able to hear if the bearings are rough or if the blower is hitting something... then you will know what you need to fix...
check pcb board or that cable which one caringelectricity till blower check auxiliaryrelay who is responsible to make active supply for blower it can be faulty you can check by a electrical teaster when your hear sound of active of relay then you check blower electric connection there is electricity or not if thereiselectricity and blower won,t run it,s mean blower motor /capacitor is faulty if there is no supply for motor blower then it,s mean PCB bord is faulty and it,s need to repair replace.it,s up to you to repair by your self or take help to a technician .
You need to call someone who truely knows what they're doing. From your decription, the person you had out should not be working on units. You have a problem most likely caused be the person that installed the new motor and these units are not designed to be worked on by the homeowner. There are hazards that could cause damage or injury.
Seems like your blower motor is burning up. Its the motor that blows cool air across the refrigeration coil. If it is a whole house ac unit, probably your main blower motor for the furnace. If you are getting sweat, that means the compressor is compressing the refrigerant, and you should not smell anything from the outdoor unit, only from the furnace. Hope this helps.