Test 1 - 120Vac Power Check; Water Heater Control Board Troubleshooting And Diagnostic Led Interpretation - 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
WATER HEATER CONTROL BOARD TROUBLESHOOTING AND DIAGNOSTIC LED
INTERPRETATION
TEST 1 – 120VAC POWER CHECK
No Green display "Power" LED on.
●
Plugs are in receptacles.
●
Supply power breaker is not "open"
●
On/Off heater switch is "On".
●
F I
. . .
. . .
. . .
voltage is not present from on/off switch center
black wire to ground
Power is present from center on/off terminal
Voltage is not present at E13 to ground
Power is present
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1
3
Voltage is not present from water heater control receptacle
E2 black to ground
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Ashland City, Tennessee
GAS WATER HEATER SERVICE HANDBOOK
TEST 1
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2
0
0
7
White Rodgers
Integrated Control
120 V. AC check to water heater ON/OFF switch
Check for 115-125 V. AC black wire to ground\
115 V. AC check to E13 Terminal and 2B receptacle.
T
h
e
n
. . .
. . .
. . .
. . .
Check conditions above
Check wiring from switch to break box
Check power from on/off switch to ignition board terminal
E13
check wiring from on/off. Left-outside terminal to E13.
Replace on/off switch.
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1
4
Check wiring from ignition control board E14 to water heater
control receptacle E2.
Replace ignition control board.
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