SBN71-120 thru 85-390, SBD30-150/199 TANK TYPE COMMERCIAL
INTERPRETATION.............................................................................................................................33
WATER HEATER CONTROL BOARD TROUBLESHOOTING AND DIAGNOSTIC LED
INTERPRETATION.............................................................................................................................34
TEST 2 - POLARITY CHECK.............................................................................................................35
TEST 6 - INDUCER ON.............NO IGNITION..................................................................................39
TEST 8 - IGNITER HEATS .............. NO MAIN BURNER.................................................................41
TEST 9 - IGNITER HEATS .......NO MAIN BURNER.........................................................................42
PARTS SBD30-150/199NE.................................................................................................................52
PARTS SBD30-150/199NE.................................................................................................................53
SBN 71-120 thru 85-390, SBD30-150/199 SERVICE HANDBOOK INTRODUCTION
This service handbook is a supplement to the SBN and SBD151/201 Installation and
Operation Manual. The handbook provides information on servicing and troubleshooting State
SBN/SBD30-150/199/ water heaters in the field. While this handbook is not intended to be all
inclusive, it contains:
• step-by-step procedures with illustrations to verify proper installation, operation,
and troubleshooting
• quick reference data to assist in servicing the product line
• answers to common questions encountered in the operation of the product line.
The handbook is intended to be used by licensed plumbing professionals. Reference should
be made to the installation manual accompanying the product. If you are experiencing a
problem not covered in this handbook, please contact the State Technical Information
Department at 1-800-365-0024 or your local State Water Heater representative for further
assistance. No duplication or reproduction of this book may be made without the expressed
written authorization of the State Water Heaters.
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