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SBN71-120 thru SBN85-390, SBD30-150/199 TANK TYPE COMMERCIAL
GAS WATER HEATER SERVICE HANDBOOK
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Ashland City, Tennessee 7002 ©
TEST 5 - CALLING FOR HEAT – NO INDUCER OPERATION
Conditions:
● Power on
● Plugs in Receptacles
● Red “ Call for Heat” LED-ON
● Inducer “Off”
Note flash code on ignition control board
diagnostic LED
Water Heater Control - Thermostat
“call for heat”
LED Indicator
“diagnostic LED
indicator”
120
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Pin 1 to ground check has no voltage •reset control by interrupting power - note
possible reasons for this from flashing LED code
•replace ignition board
Pin 1 to ground egatlov sah Proceed
Pin 3 to ground egatlov on sah •check wiring harness and plugs •replace inducer