SBN71-120 thru SBN85-390, SBD30-150/199 TANK TYPE COMMERCIAL
GAS WATER HEATER SERVICE HANDBOOK
TEST 2 – POLARITY CHECK
Conditions:
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No hot water
Green “Power” LED is on. Tank is more than 5° F below temperature dial setting.
Red ignition control board diagnostic LED is flashing 6 times between pauses.
Red, diagnostic “Call for Heat” LED- OFF.
TEST 2
Polarity Check
Check from on/off switch center and white wire terminals to ground
see Test 1. | |
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Voltage is present white (right terminal) to ground but not | reverse supply wire connections - polarity is |
black (center terminal) to ground | reversed. |
State Water Heaters | 35 | Technical Training Department |
Ashland City, Tennessee © 2007 |
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