Troubleshooting guide

troUbleShooting
If you are having problems with this unit, refer to these troubleshooting hints. Also, refer to the connection diagram to ensure your devices 
are connected properly. 
makinG connecTions
All of the main functions controlled by the XGC are accessed using (8) standard 120 VAC, 15-amp receptacles mounted on the sides of 
the enclosure. This allows you to simply “plug in” any standard device without hardwiring or hassles. Printed labels on the front face of 
the enclosure identify the receptacles.
 We highly recommend using only 3-wire devices with a ground. Suitably double-insulated devices are acceptable. Keep in mind that the 
combined amperage draw on all of the devices connected to the XGC-1e must be less than 15-amps @ 120 VAC. 
Problem
• Ihavenolightsandnofunctionatall.
• Thefusecontinuestoblow.
• Thefansarerunningsooften,theCO
2
  is hardly ever ON.
• MyCO
2
 consumption seems to be  
  quite high. 
• TheHydropumpsarenotcycling
  properly.
• TheCO
2
 outlet is pulsing ON and OFF  
  too often.
• AftermycompressedbottleorLPtank
  was replaced, the level fluctuates.
• MyCO
2
 outlet never comes on.
Suggested Action
Check the fuse and main power. Replace the fuse if required with the correct rated fuse. 
Check the equipment connected to the XGC for problems and/or short circuits.
If the fuse blows repeatedly, verify the devices connected to the unit are working properly 
and that they are not too large for the XGC-1e to safely control.
You may need to consider using expansion modules, (UPM / HPR / MLC) to decrease the   
amperage (load) on the XGC fuse.
You may have too much heat building up in your area or too small of an exhaust fan.   
Reduce the heat sources or increase your fan size. 
You may also consider using a “closed-loop” air conditioner to keep the temperature and  
humidity below the set points so that CO
2
 is allowed to run for longer amounts of time.
Make sure your area is sealed. You may want to install a motorized damper to seal your    
exhaust fans when they are “OFF”. 
The Hydro pump outlets can be operated 24-hours a day or only when the “Lights” are “ON”. 
The “Hydro” selector switch also has a center “OFF” position, which can be used to “reset” the 
timing function. Make sure the switch is not turned “OFF”.
If you are running a CO
2
 generator, you may want to change to ON / OFF control. 
If running compressed CO
2
 you may want to try running an Auto tune.
If your CO
2
 tank runs out for a period of time, the controller may take anywhere from a few hours 
to a couple of days to re-stabilize, this is normal. When the tank ran out, the PPM-2a tried to 
compensate by changing its internal settings.
Make sure the CO
2
 disable function is not ON.
If the actual CO
2
 level is above the set point (SV) the outlet will not turn on. Allow the level to 
drop or raise the (SV).










