Type of Equipment/Components (02:55)
A resource guide and wiring diagrams are available to accompany the program. Learn the specific type of equipment needing the troubleshooting. Customers provide a description of the problem with the equipment. Includes questions to consider when troubleshooting.
Normal Operation Equipment (02:48)
Fill in information on the history of previous repairs to the equipment. Take note of the symptoms you observe when you evaluate the situation of the equipment problem. Identify the sequence of operation when the equipment is working properly. Includes questions to consider when troubleshooting.
Manufacturer's Information (04:01)
To begin the troubleshooting process, review all the information available from the manufacturer. A schematic diagram accompanies this discussion. Learn the importance of the capacitors. A legend facilitates interpretation of the schematic.
Single Pole Contact (04:11)
The single pole contact is easily identified on the motor starter equipment that appeared earlier on the schematic. Learn how to set up test equipment for testing run capacitor speed.
Failed Capacitor (01:28)
Test equipment reveals that a faulty capacitor has shorted. Learn how to place leads on a dual capacitor.
Types of Capacitors (01:49)
Learn to differentiate between start capacitors and run capacitors, using a trainer board for visual understanding of the discussion.
Troubleshooting the Compressor (01:53)
As troubleshooting continues, learn about testing the compressor to determine if it is the specific problem in the heat pump.
Equipment Operation (04:01)
Learn the proper operation of the equipment. In this case, the diagram shows what is happening in the off cycle of a piece of equipment. Learn about trickle circuit and crankcase heat.
Equipment Inspection (03:24)
In further troubleshooting this particular situation, discover that when the equipment was inspected, the technician modified the compressor incorrectly. This discovery leads to two important questions to find out what error the previous technician committed, and what is necessary to correct the error.
Credits: A Heat Pump That Won’t Cool: Heat Pump Troubleshooting (00:23)
Credits: A Heat Pump That Won’t Cool: Heat Pump Troubleshooting
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