Troubleshooting Guide

STEP 2
VERIFYING POWER TO ELECTRONIC BOARD
THE FOLLOWING STEP WILL VERIFY POWER IS GOING TO THE BOARD.
TURN OFF ALL POWER TO THE UNIT. REMOVE THE 4 SCREWS FROM THE
PLASTIC BOARD PROTECTOR AND REMOVE THE COVER.
TURN ON ALL BREAKERS. WHEN BREAKERS ARE TURNED ON THE LED
DISPLAY ON THE UNIT WILL TURN ON FOR A COUPLE OF SECONDS AND
THEN TURN OFF. THIS INDICATES THAT THERE IS POWER GOING TO THE
BOARD. THE LED DISPLAY WILL FROM THEN ON ONLY TURN ON AND
DISPLAY THE TEMPERATURE SETTING ON THE CONTROL WHEN HOT WA-
TER IS DEMANDED OR IN USE, OTHERWISE THE LED DISPLAY WILL RE-
MAIN OFF. IF THE BREAKERS ARE TURNED ON AFTER BEING DISCON-
NECTED AND NO LED DISPLAY LIGHT TURNS ON FOR A COUPLE OF SEC-
ONDS, THERE MIGHT BE A BURN FUSE OR OTHER ELECTRICAL PROBLEM
WITH THE BOARD. LET’S PROCEED TO TEST THE BOARD.
AT THE TOP OF THE ELECTRONIC BOARD THERE ARE A SET OF BLUE
TERMINAL BLOCKS. THESE ARE THE CONNECTIONS FROM THE UNIT TO
THE ELECTRICAL BOARD.
THERE IS ALSO AN IN LINE FUSE PROTECCION BEFORE THE BOARD. IF
THE FUSE IS BAD THE BOARD WILL HAVE NO POWER AND THEREFORE
THE UNIT WILL NOT OPERATE.
CHECK THE FUSE USING YOUR VOLT METER. PLACE ONE PROBE ON THE
FARTHEST LEFT TERMINAL BLOCK THAT HAS THE RED FUSE WIRE CON-
NECTION AND THE OTHER PROBE TO GROUND. YOU SHOULD GET A
VOLTAGE READING OF 110-120V, IF THERE IS NO READING THE FUSE
MUST BE REPLACED.
YOU CAN CONTINUE TO CHECK THE REST OF THE ELECTRICAL CONNEC-
TIONS GOING INTO THE BOARD, VERIFY THAT THERE IS VOLTAGE READ-
INGS ON ALL TERMINAL LINES COMING INTO THE BOARD. THIS IS DONE
BY PLACING ONE PROBE OF YOUR VOLT METER ON THE TERMINAL AND
THE OTHER TO GROUND. DO NOT MEASURE ACROSS FROM LINE TO LINE
OR YOU WILL SHORT CIRCUIT COMPONENTS ON THE BOARD. ALWAYS
USE OR CONNECT ONE PROBE TO THE TERMINAL AND THE OTHER MUST
BE GROUNDED.
FAILURE TO FOLLOW THESE PROCEDURES WILL DAMAGE BOARD, THIS
TYPE DAMAGE IS NOT COVERED UNDER THE LIMITED LIFETIME WAR-
RANTY. SO IF NOT SURE WHAT TO DO OR HOW TO DO, CONTACT OUR
TECH SUPPORT DEPT.