SBN TANK TYPE COMMERCIAL GAS WATER HEATER
SERVICE HANDBOOK
TEST 5 - CALLING FOR HEAT – NO
INDUCER OPERATION
Display
Conditions:LED’s
Power on
Plugs in Receptacles
Red “ Call for Heat”
Inducer “Off”
Note flash code on ignition control board diagnostic LED
Water Heater
Control
Diagnostic | Ignition Control Board |
LED |
E4
TEST 5
115-120 V Check to Inducer
Test on Ignition Board 4 Pin Receptacle E4
If… | ...then |
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| •reset control by interrupting power - note |
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pin 1 to ground check has no voltage | possible reasons for this from flashing LED code |
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| •replace igntion board |
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pin 1 to ground has voltage | proceed |
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pin 3 to ground has no voltage | •check wiring harness and plugs |
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•replace inducer |
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©2003 | 30 | Technical Training Department | |
Ashland City, Tennessee
