11
©2020 Micro-Air Corp. Rev 1.5
Additional power interruption fault information
Common Causes
The most common reason for this to occur while on AC mains power is AC power inverters in RV
systems. These devices automatically switch on AC power from the batteries through an inverter when
the RV is unplugged. If you can unplug your RV and still have AC power then you have one of these
inverters. The load that appears when the compressor starts is often enough to trigger the switch over
to the inverter. The solution is to reduce the switchover voltage point on the inverter by changing its
setting. We have seen switchover points set typically to 115 VAC and should be reduced as low as
possible.
Faulty surge protectors can also cause power interruption. Try removing or disabling your surge
protector to see if that fixes the problem.
Power source overloading is also a cause for power interruption. Inverter generators will
commonly reduce the output if the generators motor cannot keep up. This keeps the motor from
stalling but also slows the air conditioner which will trip the breaker or overload when the generator
resumes supplying power. Be sure all the loads are off in the RV when operating your air conditioner on
a limited power source. Additional help for generator related issues can be found in our manual
accompanying our generator test kit available at www.microair.net .
Input drop on battery to AC line inverters is also a common cause. High internal resistance on
the cells, using improperly gauged wire, and poor quality inverters can contribute to these problems.
Finally, faulty breakers, undersized extension cords, bad plugs or outlets, and poor wiring can
also cause interruptions in power. Checking all of these is beyond the scope of this guide. We have
heard comments from customers like “if I put it back to factory it will work” many times. Please know
that if EasyStart is reporting there is a problem with interrupted power, there is a problem that needs to
be addressed.
To Previous Page
Loading...
Need help?
General
