One common source of declining system performance lies in a unit’s coils. The NEWS recently talked with several industry leaders who shared their experiences, coil troubleshooting tips, and best practices to help identify and fix foiled coils.
The condensing unit market is on the rise. According to a report published by MarketsandMarkets, the global condensing unit market is forecast to reach $23.31 billion by 2021, growing at a compound annual growth rate (CAGR) of 11.1 percent from 2016 to 2021. And there are a number of trends contributing to this growth.
Your role in this month’s troubleshooting situation is providing a second opinion on a failed compressor diagnosis. The customer’s complaint is that the unit isn’t cooling properly — the equipment is a heat pump package unit that is just past the warranty period for the compressor.
The OS758-LS hand-held dual laser infrared thermometer delivers reliable non-contact measurement for instant troubleshooting. It measures temperatures up to 1,600°C (2,912ºF) with adjustable emissivity for accurate results.
Bob and Tim have arrived at a customer’s house that uses fuel oil for heat. This is a “no heat” call — the customer called first thing this morning and said that the oil furnace was not coming on, and the house was cold. When they arrived, they talked to the customer, and the customer said that he had made several tries to get the furnace to operate but with no luck.
It’s the middle of summer and your customer, who can’t provide you with any helpful information about the history of this situation since they just recently purchased the business, is complaining that the temperature inside their small convenience store won’t get comfortable whenever the outdoor temperature gets over 90°F.
In this troubleshooting problem, it’s the middle of July, and you are the follow-up technician on a callback. The original complaint was a “no cooling at all” call, and the technician who preceded you on this job (we’ll call him Technician #1) has only limited experience, but he reported correctly that he found a failed transformer and replaced it.