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For technical assistance, please call 1-800-780-4324 x 20311 

Manufactured by Southwire Company, LLC, 5250 140th Avenue North, Clearwater, Florida 33760

© 2017 Southwire Company, LLC. All rights reserved.              * Trademark of Southwire Company, LLC. Registered in the United States.

ERROR MESSAGE

DESCRIPTION

REPLACE

SURGE

Surge Expended  

The Surge Guard built-in surge protection has 

been sacrificed to protect your equipment and is no longer functioning 

properly. The unit is recommended to be replaced. 

OPEN

GROUND

Open Ground 

 Disconnect unit.  Use a voltmeter to check the 

ground and neutral. Voltage should read -0-.  If not, finding another 

power source is recommended.

REVERSE

POLARITY

Any Line Wired to Neutral 

 Use a voltmeter to check for voltage 

on ground or neutral.  Voltage should read -0-.  If not, finding another 

power source is recommended.

L1 High

118V 42A

115V 32A

L2 High

High Voltage

 Voltage is over recommended operation, check with 

power source to lower voltage to >132V.   

L1 High

L2 Low

L1 Low

118V 42A

Low Voltage

 Voltage is under recommended operation, check with 

power source to raise voltage to <102V.

NEUTRIP

CUR=65A

High Neutral Current 

Voltage on neutral return over 65A on 

load side.  Check with voltmeter to verify voltage on the neutral at the 

connection.   If voltage exists, it is recommended to find another power 

source.

CUR

HIGH

Current High

  Current exceeds the recommended operation. 

Check connection with voltmeter and verify voltages are within normal 

operation.  If not, it is recommended to find another power source.

PLUG

OVERHEAT

Over-Temperature 

Temperature exceeds the recommended oper-

ation.  Check connection with voltmeter and verify voltages are within 

normal operation.   If temperature exceeds, disconnect unit, allow to 

cool completely and recommend to find another power source. 

TROUBLESHOOTING ERROR CODES

TROUBLESHOOTING GUIDE    

Model 34850   

50A Surge Guard

Portable Device with LCD Display

506-00018B

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