One common customer complaint about their central HVAC systems is that the a/c system is running but not providing any cool air to the controlled space. One of the most common reasons for this situation is that the a/c condenser or evaporator coil has frozen over. This term or phrase literally means that ice has formed on the heat exchanger, preventing the transfer of heat since the ice is acting as an insulator.
In this troubleshooting situation we have a customer who reports that when they turned on their nine-year-old electric furnace at the beginning of the heating season, they considered that the run cycles may have been excessive.
Yesterday I walked up on one of our managers who was talking to a junior tech diagnosing an intermittent controls issue on a pool heat pump.
In the background, you could hear an extremely loud compressor.
There is no federal or state law, rule, or regulation that mandates job descriptions. However, well-written job descriptions that clearly set out the “essential functions” of each job can help avoid or at least help successfully defend some legal claims, as well as contribute to the operational success of the company.
For many, being proactive with chiller maintenance in the early winter has led to better results in the spring, when it’s time to start the systems up again. Performing chiller maintenance as early in the winter as possible gives facility managers the benefit of finding major damage with plenty of time to fix the problems before the chiller needs to be back in operation.
Potential customers have many choices in today’s crowded marketplaces. As home service companies struggle to differentiate themselves from their competitors, they can’t neglect the growing consumer desire for convenience above all else.
ERVs are an important ventilation strategy for eliminating up to 80 percent of the outdoor ventilation air moisture and energy loads for many types of applications. To maximize their benefits, it is equally important to specify serviceable components that can be easily maintained for the life of the system.
This month’s troubleshooting situation involves a Rheem RRMA-A048JK10X gas pack. The customer called for service because, instead of warm air being delivered from the supply registers, all they are feeling is cold air.