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©2020 Micro-Air Corp.
Rev 1.5
7.
Is the black wire from EasyStart connected to the compressor common winding
?
Step 4 identified the compressor wiring cover and run winding wire. Identify the
compressor “C” winding wire color using the same steps in step 4. Follow the wire through
the wire harness to the connection at the contactor, relay or circuit board. Verify that the
Black wire from EasyStart is connected somewhere along that wire or on the contactor for
larger systems.
If steps 1 to 7 do not yield a solution, go to the
state of EasyStart.
Troubleshooting Generator Only Problems
If your system works as expected on utility power and does not start or starts and shuts off on
generator power, this section is the place to start.
Starting then shutting off
This could mean it runs for a few seconds or 10 minutes or more before it shuts off. Be sure
the thermostat did not turn off the compressor then read the following:
EasyStart takes itself out of the circuit after the start is complete. It does remain active
monitoring for faults that could indicate a generator overload. If it detects these faults,
EasyStart will shut down the compressor and wait 5 minutes before restarting. These faults are
caused by the power source and not by EasyStart. Some common causes of generator problems
are:
•
Obstructed air or fuel filters, bad fuel, dirty fuel delivery systems.
•
Excessive loading on generator: Small generators like 2000-watt units are often running
close to maximum capacity to run an Air Conditioner. Auxiliary loads like battery
chargers or converters, refrigerators, and water heaters can be enough to cause a
generator overload.
•
Elevation: Motors in generators are calibrated to meet emissions standards at sea level.
As elevation rises the motors run richer and power output drops. Generators operated
above 5000 feet sometimes need to be recalibrated for proper operation.
•
Temperature: High temperatures cause an increase in refrigerant pressure and higher
compressor current. Be sure Air conditioner vents and fins are clear of dirt and debris.
Verify using a clamp on current meter that the air conditioner is not drawing more than
the generators rated power output.
