Is AC coil covered under warranty?
A coil warranty covers the coil against manufacture defects. An evaporator coil and/or condenser coil should be replaced under warranty if a leak is present. If you have ever had refrigerant added to your system a leak check should be performed immediately.
How can you tell if a coil has a short circuit?
Unfortunately, there is not an obvious ‘tell’ that there is a short circuit in a coil like this. A shorted turn in an inductor will present as either very low inductance or as having very low “Q” factor – or both. Measuring the inductance is fairly simple and easy.
How does a shorted turn affect the resistance of a coil?
One shorted turn will reduce the resistance by 1/75 of an already low resistance. But if you are equipped to measure its inductance, a shorted turn (tight round this coil but not necessarily even connected to it) should cause a significant drop in inductance.
How do you calculate the inductance of a test coil?
You can either calculate the expected inductance and see if the measured value is close to that or wind a similar size coil but with fewer turns. You can then calculate the expected inductance of your big coil based on the actual measurement of the test coil with few turns. Ask if you need help with any of these.
When do you need to make a new coil?
If your are using this coil for fairly low voltage applications (<60VDC) and don’t need a lot of reliability out of it, you probably didn’t scrape the enamel in two places such that a short inside the coil has formed. If you scraped the wire a lot or need to use it for a long time, you would probably want to make a new coil.
Where is an evaporator coil located in an air conditioner?
Evaporator coils are the unsung heroes of an air conditioning or heat pump system. These units are found on top or below your furnace, and help complete your system by transferring heat for enhanced home comfort. Your Carrier expert will recommend the appropriate sized coil for your system, so that your equipment can operate at maximum efficiency.
How do you know if your ignition coil needs to be replaced?
Clip one end of the spark tester (service part number 19368) to the ignition cable and the other grounded to the cylinder head Spin the flywheel rapidly (at least 350 RPM) and watch for spark in the tester window If the spark jumps the tester gap, your ignition coil is working fine. If not, it needs to be replaced.
Where is the coil on plug ignition coil?
The COP (coil on plug) ignition system is what is used on most modern engines. There is an individual coil for each cylinder that is controlled by the PCM (powertrain control module). It eliminates the need for spark plug wires by putting the coil right above the sparkplug.
When does p0353 ignition coil C primary or secondary?
The coil driver circuit is monitored by the PCM for faults If an open or a short is detected in the driver circuit for coil number 3, a P0353 may set. Also, depending on the vehicle, the PCM may also shut down the fuel injector to the cylinder also.