Paloma PH2-20R DVSN, Engineering Handbook

Page: 35 / 172

SVC 820-Tankless Gas Trouble Shooting Manual Page | 35
35
IGNITER ROD Diagnostic Chart
YES
NO
NO
Check AC Volts across 2 grey wires on
connector “H” while unit is attempting to
ignite:
108 – 132 Volts AC
Attempt to operate unit again.
IF Igniter Rod does not spark and unit
malfunctions due to Error Code 11:
Replace Control Board
Replace Igniter Coil
YES
YES
Is the voltage
OK?
Does spark arc
across Igniter Coil
cable and Igniter
Rod?
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
Remove Igniter Rod and clean.
Reconnect Igniter Coil cable and Igniter Rod.
Attempt to operate unit again.
NO
Is spark visible
through sight
glass?
Replace Igniter Rod
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