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Scenario 2 – Error Code 11; fan is operating; igniter does spark; main burner does not ignite.
Does the Gas
Inlet Solenoid
Valve have a
voltage?
Yes
Does the
Solenoid Valve
#1 have a
voltage?
Yes
Does the
Solenoid Valve
#2 have a
voltage?
Yes
Does the
Solenoid Valve
#3 have a
voltage?
Yes
No
Measure the voltage of connector K between
Black and Yellow wires:
90 to 120 VDC
No
Measure the voltage of connector K
between Black and White wires:
90 to 120 VDC
No
Measure the voltage of connector K
between Black and Red wires:
90 to 120 VDC
The 2-4.2 and 5.3 units only have two stages of burner. Skip the
next step.
No
Measure the voltage of connector K
between Black and Blue wires:
90 to 120 VDC
46
SVC 810 Tankless Troubleshooting Manual
Replace Printed Circuit Board
Replace Printed Circuit Board
Replace Printed Circuit Board
Replace Printed Circuit Board
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