Articles Tagged with ''HVACR troubleshooting''

Dec. 2, 2013: New HVACR Troubleshooting Website, Troubleshooting Videos Introduced

Site Focuses on Equipment Servicing, Videos Provide Training on Heat Pumps
December 2, 2013
Technical Training Associates, an independent training firm in Tucson, Ariz., has established a new website at www.hvacrtroubleshooting.com that focuses on HVACR troubleshooting and equipment servicing. The company is also offering two videos on specific troubleshooting problems related to heat pumps.


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The Professor: Diagnosing Bad HVAC Compressor Valves

When Low Head and High Suction Pressures Collide
October 7, 2013
Many service technicians experience service calls where the compressor has both a low head pressure and a high suction pressure. Often, the refrigeration equipment is still running, but the product temperature is suffering about 7-10°F.


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Troubleshooting Challenge: A Modular A/C Unit That’s Not Cooling

March 4, 2013
In this month’s troubleshooting situation, we’re taking you to a school, but not to the equipment room of the main building. Instead, it’s a modular classroom (similar to a double-wide manufactured home) that is brand new, and employs a heating/cooling unit that mounts on one end of the building. 


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3-D Simulation Software Trains Techs

Virtual Program Assists in Troubleshooting and Repair
December 24, 2012
Interplay Energy develops 3-D interactive simulation training and testing applications. The company was approached about developing a companion program for the HVACR textbook, Refrigeration & Air Conditioning Technology. The end result is the new Delmar Online Training Simulation: HVAC from Interplay Energy.


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Troubleshooting Challenge: A Heat Pump That Kicks Off

November 5, 2012
In this month’s troubleshooting problem we have a customer who can only tell us that their heat pump “isn’t working” and “the temperature in the building isn’t right.” When you arrive, you confirm the system isn’t operating properly. The indoor fan motor is running normally, but the building temperature is far from the thermostat set-point.


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Btu Buddy 113: Restriction in the Liquid Line Problem

August 20, 2012
Bob and Tim have been sent on a call to a house with no cooling. The system has just been installed and the construction crew has been having problems with startup. The system has a capillary tube metering device and Bob and Tim begin looking at what may be wrong.


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Btu Buddy 112: Too Much Load for Air Conditioner

July 23, 2012
Bob and Tim were on their way to a residence where the occupants said their unit runs all day long, but the space temperature rises to 82°F while the thermostat is set at 75°. The unit shuts off during the night and the temperature inside is 75° in the morning, but during the day it rises.


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Troubleshooting Challenge: Assisting With a Split System Problem

July 9, 2012
In this month’s troubleshooting problem, you have been called by a colleague who is relatively new to HVACR to assist in repairing a split system in a manufactured home. The original diagnosis regarding this unit that is sitting dead was that the PCB 3-amp fuse was blown, and when it was replaced, the new fuse also failed.


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Training Track: July 2, 2012

July 2, 2012
SER028 - HVAC Mechanical Pro-Troubleshooting presented by Carrier Corp., Carrier University.


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The Professor: Condensing Temperatures and Condensing Splits

July 2, 2012
The three functions of the condenser are desuperheating, condensation, and subcooling. Read to find out more about what the Professor has to say about these three topics. 


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