Owner's manual

Questions? Please Contact Your Local Manufacturer’s Representative
SECTION 4 EDR-IOM-2014-0318 MAINTENANCE
4-7
PROBLEM CAUSE CHECK
Main  ame fails Ignition issue 1. Visually verify spark.
2. Replace igniter or transformer, as needed.
Gas valve not set properly Verify the last elbow gas pressure matches the start
up report.
Enrichment issue Verify the pressure of the regulator matches the
report.
Flame detector failure 1. Visually verify the  ame through the sight glass.
2. Remove  ame detector and visually verify the
 ame through the scanner tube.
3. Verify the  ame detector eye is not dirty.
4. Replace scanner.
Insu cient Gas Supply 1. Verify the manual shut down valves are open,
allowing gas  ow through the gas train.
2. Adjust incoming gas pressure to match the start
up report.
Gas Filter Blocked Replace gas  lter.
Air supply blocked Verify venting is not obstructed and  lter is not
plugged.
Boiler fails while
modulating
Gas valve not set properly Verify the last elbow matches the start up report.
Air supply blocked (direct vent only) Verify venting is not obstructed.
Poor combustion Gas valve not set properly Adjust gas valve settings.
Manual Reset limit device
trips
Manual Reset Limits include: Flame safeguard, high
or low gas pressure, high temperature limit
DO NOT reset without determining and correcting
the cause.
Power outage to the boiler
room
Entire boiler system is disabled and de-energized. When power has returned, the boiler will have to be
manually reset, as it will be in the lockout position
Gas Pressure alarm is
annunciated
Either insu cient gas pressure or the gas pressure
to the manifold is too high for safe and proper
operation of the boiler. This shuts down the burner.
When gas pressure is restored, the annunciated
alarm will remain on and the boiler will remain
locked out until the gas pressure switch is manually
reset.
Locate cause and correct. In the event of a high
gas manifold pressure condiƟ on, qualifi ed service
personnel must correct the problem before
restarƟ ng the boiler.
High water temp alarm is
annunciated
Boiler water has exceeded both the operating and
high-limit temperature. When the water temperature
falls below the high-limit temperature, the boiler will
remain locked out until the controller is manually
reset.
Locate cause and correct. Once the control is reset,
the sequence returns to normal operation provided
that the other limits are satis ed.