Troubleshooting Guide

(317) 577- 0417
COOL-SPACE.com
TECHNICAL SUPPORT LINE: 1-800-557-5716
All product information can be found at COOL-SPACE.com
[e-mail]
ERROR CODE CAUSE SOLUTION
E1
OVER VOLTAGE
PROTECTION
Current draw too high Check motor spins freely, Check
airow not obstructed, Replace
motor
E2
OVER VOLTAGE
PROTECTION
Supply voltage too high ≥132V Try dierent circuit, Install
voltage regulator
E3
LOW VOLTAGE
PROTECTION
Supply voltage too low ≤108V Check extension cord size, Try
dierent circuit, Install voltage
regulator
E4
LOSS OF PHASE
PROTECTION
Motor phase imbalance Loose or disconnected motor
wire, Replace motor
E7
OVERLOAD
PROTECTION
Motor running too hot Check extension cord size,
Check motor spins freely, Check
airow not obstructed, Replace
motor
F6
COMMUNICATION
FAILURE
Failure of communication
between control panel and
control board
Check connection of control
cable, Check control cable not
broken