Compressor troubleshooting - Articles - Page 4

Compressor Discharge Temperature Reflects How Equipment is Operating

Keep an Eye on Discharge Line Temps

February 10, 2020

The compressor’s discharge temperature can tell the service technician what is going on inside a refrigeration or air conditioning system.

Mistakes To Avoid When Changing Out A Compressor

Following these steps can reduce the chances of a call back

Joe Marchese

October 7, 2019

Replacing a compressor is typically a major investment, so having to return and repair the same issue, or an additional issue, should be avoided.

Flooding, Migration, and Slugging of Compressors

Causes and cures for these troublesome conditions

John Tomczyk

October 7, 2019

When it comes to servicing compressors, technicians often encounter three issues: flooding, migration, and slugging.

Troubleshooting Single Phase Residential Compressors

What to do when the system won't start

Dave Spates

September 16, 2019

This article will discuss tips on troubleshooting single phase, residential compressors that won’t start.

How A Service Part Can “Kill” The Compressor

Hard-start kits can have unintended consequences

Jonathan Charles

May 27, 2019

There are times when the attempt to do something positive can result in something unexpected. The annual increase in the number of hard-start kits being added to air conditioners is a perfect example.

One Compressor Does Not Equal Another: Verify Before Replacing

When choosing a new model, check on a few things first

Joe Marchese

April 1, 2019

If a system has a defective compressor, finding a replacement is generally easy, but here are a few tips, just in case.

Compressor failure - cracked piston. - The ACHR News

Sleuth the Truth Behind Compressor Failure

For contractors and customers alike, the biggest mistake can be taking breakdowns at face value

Robert Beverly

March 18, 2019

The weird thing about compressor problems is that — well, it’s usually not the compressor.

It’s probably something else. Can the technician on the job today figure out what that something else is? That could determine whether it’s a successful call and a happy customer or a visit that appears successful until the new compressor fails (after several additional costs and a lot of frustration).

How to Prevent the Compressor From Overheating

Discharge temperatures, superheat can offer insights

John Tomczyk

December 3, 2018

To obtain the heat content (enthalpy), it would be necessary to know both the pressure and temperature at this point and then use a thermal dynamic superheat table for this specific refrigerant.

A Compressor That Won't Start

Jim Johnson

October 8, 2018

In this month’s troubleshooting situation, our problem involves a 4-pin compressor that uses both an internal and external overload protector. Two other factors in regard to this particular piece of equipment are: A single-pole contactor is used in the compressor circuit, and it is equipped with high and low pressure switches that act as protective devices.

A Refrigeration System With a History of Compressor Failure

Jim Johnson

May 7, 2018

In this troubleshooting situation, the equipment is a walk-in refrigeration system in a busy restaurant that has experienced a compressor failure…specifically a mechanical failure.