Paloma PH2-20R OFN Engineering Handbook page 35

Check AC Volts across 2 grey wires on
connector "H" while unit is attempting to
ignite:
108 – 132 Volts AC
Igniter Rod is 'OK'
IF unit fails again due to Error Code 11:
IF flame IS visible, diagnose Flame Rods
IF flame is NOT visible, diagnose
Gas Control Valve
SVC 820-Tankless Gas Trouble Shooting Manual
IGNITER ROD Diagnostic Chart
Is the voltage
OK?
YES
Remove Igniter Coil cable from Igniter Rod. While
unit is attempting to ignite, hold end of Igniter Coil
cable 1/8" from end of Igniter Rod.
Make sure you hold Igniter Coil cable on the rubber
insulation while performing this check
Does spark arc
across Igniter Coil
cable and Igniter
Rod?
YES
Remove Igniter Rod and clean.
Reconnect Igniter Coil cable and Igniter Rod.
Attempt to operate unit again.
Is spark visible
YES
through sight
glass?
Attempt to operate unit again.
IF Igniter Rod does not spark and unit
malfunctions due to Error Code 11:
NO
Replace Control Board
Replace Igniter Coil
NO
Replace Igniter Rod
NO
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