Test 2 - Polarity Check - State Water Heaters SANDBLASTER SBD30 150 Service Handbook
Self-cleaning induced draft multi flue commercial gas water heaters
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Also See for SANDBLASTER SBD30 150:
- Specification sheet (2 pages) ,
- Specifications (2 pages)
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SBN71-120 thru SBN85-390, SBD30-150/199 TANK TYPE COMMERCIAL
TEST 2 – POLARITY CHECK
Conditions:
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
115-125 VAC is not present
Voltage is present white (right terminal) to ground but not
black (center terminal) to ground
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Ashland City, Tennessee
GAS WATER HEATER SERVICE HANDBOOK
Polarity Check
Check from on/off switch center and white wire terminals to ground
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2
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7
see Test 1.
reverse supply wire connections - polarity is
reversed.
3
5
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