It's possible the "energy saver" box needs resetting. There should be separate breakers for the compressor (outside unit) and the indoor blower. Make sure they're all turned on. Some units have a delay until they come back on after a power failure, which the initial power-up might would appear to the system controller as a power failure.

If the system is a two-speed, then it's NOT good to have load management involved (the "energy saver" box). I don't think my local electric cooperative will run load management on heat pumps at all (definitely not on two-speeders) ... although a 1-speed is the same as standard air conditioning, so seems they'd still do load management on 1-speeders during the summer season. Far as I'm aware they don't do load management here at all during the winter months.

downsouth

a couple of thoughts

When you say "energy saver box", I assume you are speaking about load control. I would call electric utility and get some education on this box and how it works. Tell them your problem.

Eliminate any breaker box that might have tripped. See if a fuse needs to be replaced.

Finally, does the air blower fan come on? Set fan selection at thermostat to "on" and see what happens.

If this does not help, call a local HVAC company for service. The fact that you have a HP does not have anything to do with your problem.

IMO

The problem was the energy saver box (what I now have learned is called the load control box, LOL). After our power co. removed it, the AC has been working great.

Dee

For future reference, I have a unit that sometimes will not start up after a power fluctuation. Happens about twice a year. Rather than paying for a service call I simply turn the system OFF at the thermostat and turn it back on. Works fine after thqt.