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RPM Sensor Loss 1511
ALARM

This RPM alarm is set when a single (1) cylinder unit was already running and stalled or lost the RPM signal from the ignition coil. Possible causes could be a fuel issue, the LP tank is empty, ignition coil is damaged, or the unit was overloaded quick enough that the engine stalled and set the alarm.

RPM Sensor Loss 1515
ALARM

This RPM alarm is set when a single (1) cylinder unit is cranking. It's caused when the controller told the engine to crank, but did not get a signal back that the engine was actually turning. Possible causes are a dead or bad battery, bad starter or wiring to the starter, or ignition coil problems.

Underspeed 1600
ALARM

An e-code that's triggered when the engine speed is slowed to 55Hz for a 60Hz unit for 30 seconds (or 40Hz for a 50Hz unit). Most likely problem is that the unit is overloaded or something has tried to turn on that overloaded the unit. Could also be fuel related or a stepper motor throttle control problem .

Underspeed 1603
ALARM

This alarm is triggered when the engine never came up to its rated 3600 RPM speed during startup. Stepper motor and the fuel system should be checked for problems. Make sure the orange fuel selector knob is set to the correct fuel.

Overvoltage 1800
ALARM

The alarm is set when the unit's rated voltage output is exceeded for a prolonged period of time. A voltage test should be done to determine the problem. Most likely a bad AVR (automatic voltage regulator) which is internal to the Evolution control board

Undervoltage 1900
ALARM

e-Code is displayed when the output voltage is below 80% of the unit's rated output for 10 or more seconds. Please note that if the installed firmware is below version 1.12 you should update the firmware before going further. Frost or debris on the slip rings can cause a bad connection to the brushes where version 1.11 and below would shut the unit down before attempting to 'clean' the slip rings during running. Version 1.12 and above will run the unit with excitation voltage for 4 minutes before shutting down for undervoltage.

Undervoltage 1901
ALARM

A sudden drop in voltage will set this alarm. This can also occur during a stall condition which may be fuel related and can throw troubleshooting in the wrong direction. All engine functions should be checked as well as voltage. Causes could also be a stator or rotor problem, brush problem, unit being overloaded, or wiring problems. Firmware v1.12 or higher should also be installed before going further.

Undervoltage 1902
ALARM

Fault is displayed when both zero crosses are missing from the controller's input for 1.5 seconds or more. Could be a faulty excitation winding, zero cross circuit, loose wiring, or field boost hardware problem. Same applies here, v1.12 or later firmware should be installed.

Undervoltage 1906
ALARM

Same basic alarm as above, however only 1 zero cross is missing for 1.5 sec instead of both. See Undervoltage 1902 above for causes and troubleshooting.

Wiring Error 2099
ALARM

The controller's wiring on the customer side is most likely miswired. This is normally caused when the high and low voltage wiring connections (194, 23, N1, N1 and T1) are confused during the installation. Normally this alarm won't appear after the initial install since that wiring doesn't normally change after the installation.

Overload Remove Load 2100
ALARM

Alarm is triggered when the unit is overloaded and the internal CT (current transformers) detected an overload condition. This should be 1 or both CT's that detected the problem. The loadshed modules (if in use) should be checked, load should be removed, or load shedding should be installed to prevent the overload from happening.

Overload Remove Load 2102 (This ONLY pertains to 8 & 9kW units)
ALARM

The unit re-cranks 5 times, when load is applied the engine stalls (0 RPM) and has low output voltage (< 180VAC) The unit is most likely overloaded and load should be removed to prevent damage. Inspect the stepper motor and linkage to make sure it's not binding or stuck. Also check for fuel problems such as pinched fuel lines.

Overload Remove Load 2103 (This ONLY pertains to 8 & 9kW units)
ALARM

The unit has attempted to run and accept load 10 times and could not due to an overload condition. Check connected loads for overloading. See above overload alarms for other troubleshooting...

Undervoltage Overload 2299
ALARM

The unit was overloaded and attempted to start with a large load still connected to the generator. The generator cannot ramp up the generator output to normal with a large load connected. The main breaker inside the generator or in the gray door on the side should be turned off while the unit is started and then once up to speed and steady, the breaker can be turned back on to re-connect load. If the engine struggles to accept the load, items should be turned off to decrease the load on the generator. This would only be something that would occur during an ongoing outage where the transfer switch was still connecting the load to the generator.

Stepper Overcurrent 2399
ALARM

The current flow measured in the stepper motor circuit was above spec. Check the stepper motor for operation and check resistances of the stepper coils.

Fuse Problem 2400
ALARM

Missing, blown, or damaged 7.5A ATO type fuse in the controller (located under the rubber USB port flap on the top of the Evolution Controller). This alarm was flashed out of the programming on versions 1.12 and above. If you see this alarm, upgrade the firmware in the controller to a current version (1.20 as of writing this)

Aux Shutdown 2800
ALARM

This only pertains to units with an external shutdown switch or switches installed. New WiFi units come standard with these switches, some (15kW and above) with 2. One located on the back side of the unit and one inside on the firewall. They must be on for the unit to run. If they are both on, check the wiring and connections for problems.

Low Battery
WARNING

The warning is triggered when the battery voltage drops below 12.1 volts for 60 seconds or more. Charger output should be checked as well as the battery should be load tested once charged. Battery could be bad or charger could be faulty.

Battery Problem
WARNING

This warning is triggered when the battery voltage is more than 16 volts or more than 600mA of charge current is detected at the end of an 18 hour charge cycle. Battery should be removed and tested. If bad, replace. Note that as of writing this, the only way I know how to clear this alarm is by removing a battery terminal from the battery, and then unplugging the T1 2-wire white colored connector under the controller. This will power cycle the controller and reset the alarm. If it returns, further investigation into the controller may be needed.

Charger Warning
WARNING

Warning is displayed when the battery voltage is below 12.5 volts at the end of an 18 hour charge cycle. Battery should be tested as well as the charger. Note that as of writing this, the only way I know how to clear this alarm is by removing a battery terminal from the battery, and then unplugging the T1 2-wire white colored connector under the controller. This will power cycle the controller and reset the alarm. If it returns, further investigation into the controller may be needed. 

Charger Missing AC
WARNING

This is a very common alarm to see during install if the battery was installed before the charger was powered on, or during a power outage where the unit isn't running for some reason. It's displayed when the T1 wire (120V power to the battery charger circuit in the Evolution controller isn't live) If power is out and the unit isn't running this alarm will be triggered since the battery charger is now not getting power from the house. Eventually the battery will die if left for several hours without a charger input. If this is a new installation, all of the control wiring should be checked to make sure that one or more of the wires isn't loose, transposed, or missing completely... The T1 fuse should also be tested. Another issue could be if the unit had a cold weather breather heater (model 7103) installed which is powered by the T1 wire. If the heater had a problem or is shorted and blew the T1 fuse, you will see this alarm.

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