I have a WaterFurnace geo unit, installed in 2004. I've had trouble with the unit ever since it was installed. Its original compressor would get stuck, drawing immense amount of power for a few seconds (browning out the rest of the house), tripping brown-out protection which forced it to rest for a few minutes then try to start again. At times it would quit running completely.
The service tech has been responsive and helpful. Yesterday he installed a new compressor, which I am told is WaterFurnace's solution to my problem. Apparently WF had reports of the same problem from multiple customers, and have addressed it by switching to a new compressor supplier.
Since the switch, I've noticed that the geo cycles on and off more frequently -- a sign that it might be working better. Before it was as if the unit would never shut off. The heat now seems a touch warmer out of the vent too.
Two problems remain. First, the new compressor has a harder start than the old one. Even with the hard start kit, we are seeing power surges in the house every time the unit starts up. This time of year, that's about every 20 minutes. VERY annoying. The geo has its own electrical panel, and my house is rural so it is the only user of the power company transformer, capable of serving several homes. Way back when we first had compressor problems, we verified adequate wiring, connector torque, utility power supply, breaker quality, meters, etc. All was fine.
For the second problem, the new compressor is louder and has an annoying loud thunk at the end of its cycle.
Does anyone have any advice on how to improve things?