Heil air conditioners Troubleshooting. If you’re having trouble with your Heil Air Conditioner, you’ve come to the right place.
Our comprehensive guide will describe common issues and give tips on how to diagnose them, so keep reading.
Heil air conditioners Troubleshooting
Here we will discuss some common issues and solutions such as AC not cooling, making noise, fan motor does not run, and Condensing unit doesn’t work.
Failure of Condensing Unit
The thermostats that we install have components that can fail. If they fail they can do so without warning, leaving your furnace and/or refrigeration systems non-functional.
The central air unit’s compressor is electrically enabled and will only run if it has power. Thus, turning off the power strip will render it inoperable.
See if the breaker has tripped or flip a single light switch to see if this turns off the unit as well. If so, there may be a fuse issue. Checking each fuse individually can determine which one is a problem.
Take out the condenser fan motor and compressor, and check their capacitors. If the capacitors have dried up, they may have burst and shorted the windings.
On U-shaped motors, disconnect one leg of the winding (to avoid a shock) and close a jumper wire over the isolated leg to find whether there is a short in it. Measure resistance across the capacitor terminals.
Fan motor Not Running
If the capacitor is defective, or if there is a large amount of physical damage to the capacitor itself, then the fan motor may become damaged as well.
Inspecting the fan and capacitor can help you determine whether or not this has occurred.
In order to determine if the capacitor is faulty (damaged), look at if it’s leaking any fluids (often visible) or it’s visibly bulged outwards.
The easiest way to do an inspection of the capacitor easily is using either a multimeter, replacement fans with working capacitors that can be taken apart, etc.
To determine if the fan motor is working, use a multimeter to test for voltage into the motor.
If you find that there is no incoming power to the fan motor with the correct input voltage, examine the condenser to ensure it’s not faulty (defective capacitors, etc). If there are no signs of damage (i.e. bulging or clearly visible leaks), replace the fan motor.
Noisy Air Conditioner
The fan motor of the condenser fan might be loose or defective. The first step is to tighten the mounting screws for the rusted belt.
If tightening the screws does not fix this problem, one needs to replace the condenser fan completely.
Condenser motor bearings can become worn out by time. When this happens, the motor will begin to make a loud noise because it is having trouble spinning smooth enough.
The best way to test whether or not your bearings are on their way out is by hand rotating them. Be careful not to break anything! If they do spin freely, it’s best to consider replacing that part altogether.
Improper Cooling
Contactors receive a low voltage signal from the furnace control board. Contactors send voltage to condenser components when they receive the signal, closing the circuit.
If there is a defect and the contactor stops working or changes its resistance or position, it will fail to send current to all of the components.
If a multimeter test shows that the contractor has continuity but fails to send power, it needs to be replaced.
The dual capacitor fan motor, or “dual run capacitor”, can cause the fan to be noisy, overheat and even stop working. To check if the capacitor has failed, inspect it for any signs of overheating.
If there are yellow burn marks around the edges or it’s starting to bulge out anywhere, replace it immediately.
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