Voltage Builds Up Until Relay Actuates, Then DecaysStep 1. Check for a defective Voltage Adjust Rheostat (R1) and/or defective associated circuitry.If the circuitry is defective, repair the circuit/wiring.If the rheostat is defective, replace the rheostat.If neither the rheostat or the circuit is defective, proceed to Step 2.Step 2. Check for input power to terminals 3 and 4. If a brush-type rotary exciter is not used, proceed tostep 3.If power is not present, check and repair wiring as necessary.If power is present, proceed to Step 3.Step 3. If the above steps do not correct the malfunction, replace or repair the voltage regulator asnecessary.Voltage High but Uncontrollable with Voltage Adjust RheostatStep 1. Check for sensing voltage at terminals E1, E2, and E3.If sensing voltage is not present, repair wiring.If sensing voltage is present, proceed to Step 2.Step 2. Check that the transfer switch (if used) is in the Auto position. If a transfer switch is not used,proceed to Step 3.If the transfer switch is not in the Auto position, place in Auto.If the transfer switch is in the Auto position, proceed to Step 3.Step 3. Check for a shorted external Voltage Adjust Potentiometer (R1).If the Voltage Adjust Potentiometer is shorted, replace the Voltage Adjust Potentiometer.If the Voltage Adjust Potentiometer is not shorted, proceed to Step 4.Step 4. Verify that the sensing transformer is set to the proper tap.If the transformer tap is improperly selected, reconnect to the proper tap.If the transformer tap is properly selected, proceed to Step 5.Step 5. Check for a faulty relay (K1).If relay K1 is defective, replace relay.If relay K1 is not defective, proceed to Step 6.Step 6. If the above steps fail to correct the malfunction, replace or repair the voltage regulator asnecessary.Voltage High but Controllable with Voltage Adjust RheostatStep 1. Check that the sensing transformer is set to the proper tap.If the transformer tap is improperly selected, reconnect to the proper tap.If the transformer tap is properly selected, proceed to Step 2.Step 2. Check that the Voltage Range Adjust Potentiometer (R3) is not set too high.If the Voltage Range Adjust Potentiometer is set too high, adjust the potentiometer.If the Voltage Range Adjust Potentiometer is within limits, proceed to Step 3.CALL US TODAY1-888-POWER-58REQUEST A QUOTEparts@genpowerusa.comSHOP ONLINEwww.genpowerusa.comCALL US TODAY1-888-POWER-58REQUEST A QUOTEparts@genpowerusa.comSHOP ONLINEwww.genpowerusa.com