GSI Group 1200 Bu/Hr, Owner'S Manual, Page: 73 / 76

PNEG-1355 4" & 5" Air Systems 73
13. TROUBLESHOOTING
4. Unit will not start, “ready light” is
not on.
1. Check AC power supply.
2. Check control box fuses.
3. Thermal overload tripped (overload indicator is on).
4. Air pressure limit switch may be misadjusted (less than 5 PSI). If
pressure switch is not reset, turn pressure adjustment clockwise
until switch resets.
5. Be sure “start” switch is pushed.
5. Unit will not start, the “ready
light” is on.
1. Blower, airlock and auxiliary switches must be in either “Auto” or
Manual” to operate.
2. The automatic control not wired correctly or not working. (Requires
a closed contact across TB1 and TB2 to auto start).
6. Blower Motor Trips Thermal
Overload
1. Check current draw using Amp meter. The motor should not be
pulling more current than the name plate specifies. Reduce feed
rate if excessive.
2. Check heater sizes.
3. Check for loose connections and/or too small gauge wire.
4. Wrong voltage (either high or low).
5. Too much load due to obstructions, bad bearings or dry gears.
7. No Control Voltage 1. Control Fuse inside the control box is down.
2. Check main power for proper voltage.
Problem Solution