Test 6 - Inducer On - 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 6 - INDUCER ON.............NO IGNITION
Conditions:
Power on
●
Plugs in receptacles
●
Inducer operating
●
No power to Hot Surface IGNITOR
●
(HSI) Note LED flash code
TEST 6
f I
...
ignition board receptacles E1, Pin 7 to ground shows no voltage
E1, Pin 7 has 24 Volt
o t
g
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voltage check of each blower switch terminal to ground shows
voltage to only 1 terminal
Natural Gas ONLY!
24V is present from each switch terminal to ground
Voltage check to each terminal of low gas pressure switch and
ground shows only voltage on 1terminal
Voltage is present to each pressure switch terminal and ground
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Ashland City, Tennessee
GAS WATER HEATER SERVICE HANDBOOK
24 VAC Check of Blower Prover/Low Gas Pressure Circuit
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2
0
0
7
DRAFT PROVING
PRESSURE
SWITCH
LOW GAS
PRESSURE
SWITCH
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n
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. . .
. . .
replace Ignition board
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Switch is open - check for proper draft (should also see LED 3 flash
code)...Check for blocked exhaust.... Check that blower outlet exhaust
damper is open....Replace blower (draft) proving switch
Check wiring from blower switch to low gas pressure switch
Switch is open - test for a minimum of 5.2 ± " W.C. Natural Gas or
10.5" Propane, flowing supply gas pressure (should also see 3 Flash
LED code)..............Replace low gas pressure switch
Check wiring from low gas pressure switch to ignition board
receptacles E1, Pin 10
3
9
T
INDUCER EXHAUST/
VENT CONNECTION
INDUCER
MOTOR
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