I have been in the HVAC field for the past 18 years. I can help with most HVAC questions. I work on commerical buildings for the most part, and have yet to find anything I could not troubleshoot and repair, when repairable. I work on small 1 ton units to a 2500 ton chiller. Troubleshoot air flow, elect, and control problems. I attend regular classes to keep up with the latest and greatest.
I work on commerical sites, hospitals, gov't buildings. I can troubleshoot just about anything in the HVAC business.
5 years trade school, VFD training classes, Liebert factory training, some York and Trane factory training.
Always a new challange, and a different problem to solve.
When the sump heater was replaced, it was likely found during the repair. It may not have been the root of the problem, but a secondary issue. The heatpump might be on its own well, I do not know without
You are lucky to have a unit stat is still running after 30 years. Most units in FL, only last 15-20 years. The reason to keep the oil warm is to keep the refrigerant from saturating the oil. Many
The sump/crankcase heater is not going to cause the problem you are describing. The thing I would check first is water flow. It sounds like the unit is running for a short time then tripping on high
I am in no way an expert when it comes to water hardness...I can only speak from dealing with them at work and I do work with equipment that does require a lot of water with proper treatment. I found
Units have different layouts in relationship to the A coil. The unit can be a force though or a draw through. In some cases the coil can be accessed both through the access panels and the air entering
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