Why the fan running but the compressor is not?

If your ac compressor is not working, but the fan is running, someone might have unknowingly set the wrong temperature on the thermostat. In such cases, the room may be already cold enough, so the compressor is not required to operate.

Why does my condenser fan stop running?





Lack of maintenance: This is probably the most common reason that causes condenser fan motors to overheat and shut off. Proper and regular lubrication of the fan motor is necessary for the motor to run smoothly. Periodically making sure that there’s no debris or dust in or around the fan motor is also a good idea.

Will condenser fan run if compressor is bad?

Inappropriate maintenance of the AC compressor sometimes can lead to its malfunctioning. An air conditioning unit can still appear to run with a malfunctioning HVAC compressor. AC unit is equipped with a pair of fans, which still can run even in case of a malfunctioned compressor.

What controls the condenser cooling fan?

The condenser fan relay is the electronic relay that controls the power to the AC condenser cooling fan. When the relay is activated the AC condenser fan is switched on so that it can keep the AC condenser cool.

How do you unclog a condenser coil?

Quote from the video:
Quote from Youtube video: Take take your water hose. Let what you really want to do is shoot your water down from the top down to the bottom. Okay going to the top. And you'll watch all the studs run down to the bottom.

Can a compressor run without a fan?





The compressor will also need repair if it is running without the fan. It will probably cycle on internal overload until it is repaired.

How do you diagnose a bad condenser fan?

5 Signs Your AC Fan Motor Is Bad

  1. The cooling fans won’t turn on.
  2. The fan turns on when the AC is running, but the blades rotate slowly.
  3. You can hear a rattling noise coming from the condenser unit.
  4. It smells like something’s burning.
  5. Blown fuse.


Do condenser fans always run?

When the fan is switched to the “on” position, it will run continuously. It should be set to the “auto” position, so it only runs when the air conditioner is running. AC is too small for the property or can’t keep up with extreme temperatures.

What problem occurs when the condenser fan short cycles?



What problems occurs when the condenser fan short cycles ? The fan motor can be damaged.

How do I know if my condenser fan relay is bad?

Bad Cooling Fan Relay Symptoms

  1. The engine runs hot or overheats. …
  2. The cooling fans don’t work. …
  3. The cooling fans keep running. …
  4. Warning lights. …
  5. Poor air conditioning performance. …
  6. Swapping Relays. …
  7. Measuring the Relay Coil’s Resistance. …
  8. Listening for Noises.

How do you test a condenser fan relay?

Quote from the video:
Quote from Youtube video: So just take the leads turn those three and five and we should hear an audible alert.

What are the symptoms of a faulty cooling fan switch?



Common signs include engine overheating, the Check Engine Light coming on, and a broken or shorter signal wire.

Why is AC running but not cooling?

If your air conditioner is running, but not lowering temperatures inside, one issue could be a blocked or clogged condenser coil. When operating correctly, the condenser fan draws air into the outdoor unit through the condenser coil to pull heat energy out of your home.

Is it OK to spray water on your air conditioner while running?

The good news is that you absolutely can spray water on your air conditioner if it needs a cleaning, and nothing bad will happen. Spraying water on your AC’s condenser also helps it run more efficiently. In fact, your condenser needs a regular spritzing in order to keep doing a good job.

How much does it cost to replace a condenser coil?

Residential AC Condenser Coil Labor Cost



The condenser coil usually costs about $400 to $1,200 to replace. Most HVAC pros charge in the range of $50 to $150 per hour.

How long do AC condensers last?



15 to 20 years

While every unit is different, and every homeowner has a different understanding of when their central air conditioner is broken beyond repair, it’s fair to say that, with proper maintenance and care, you can expect a good 15 to 20 years of cooling from a new high efficiency air conditioning system.

Can I just replace my condenser?

Your Condenser Unit Could Solely Be to Blame for a Broken AC



The condenser unit could be the reason that your entire air conditioner breaks down. Don’t lose all hope just yet though! A common question we get is if you can replace just the condenser. The short answer is yes, you can.

How long do AC coils last?

10 to 15 years



For an evaporator coil to live out the fullest extent of its life, the AC unit must be regularly maintained. If proper maintenance is regularly performed, then the evaporator coils should last 10 to 15 years, which is the ideal lifetime for an evaporator coil and comparable to the lifespan of an AC unit.

How do I know if my AC evaporator coil is bad?

Signs of Damaged Evaporator Coil Components

  1. Air coming from the vents is warm.
  2. Air conditioner starts and stops frequently but doesn’t properly cool your home.
  3. Air conditioner does not turn on.
  4. Refrigerant leak near the indoor cooling system components.
  5. Unusual noises from the cooling system, such as banging or hissing.


How much does a new coil cost for an air conditioner?

Condenser Coil Costs

Coil Capacity Part Only Installation Cost
1.5-2.0 ton $575 – $800 $475 – $650
2.5 ton $625 – $975 $535 – $750
3.0 ton $735 – $1,055 $600 – $835
3.5 ton $775 – $1,025 $775 – $985