We have a 5ton Carrier "Performance Series" Air Conditioner(not heat pump), model number: 24APA560A300
It is about 18 months old.
When the unit starts, it really dims the lights in the house noticeably. And over the last season, it really seems like it has gotten worse, although it is possible that this is our imagination.
The specs on the label are:
Minimum Circuit Amps 34.3
Max breaker 50amp
We have a 200 amp service, and have a pretty light load. The only other big draw we have is our electric dryer, which doesn't run frequently and doesn't have to coincide with the A/C startup for lights to dim, and our electric water heater.
The breaker is 50amp SquareD, and we have 6 gauge service wire to the A/C unit.
Does anyone have any thoughts on why this unit would be dimming our house lights(whole house) so noticeably, and if it is possible it could be getting worse?
One electrician friend suggested it may be a poor ground, and that a local ground rod for the A/C itself might help.
Another said I should just upgrade to a 400 amp service, but I find that hard to believe.
I can provide more info if needed.