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ANNUAL TECHNICIAN INSPECTIONS
Before each heating season, call your qualified
service technician to perform the following
inspections (and repair any problems encountered).
Check Vent System: For corrosion, obstructions, leaks
or sagging. Will require disassembling and resealing of
vent tubing.
Check Water System: For water piping leaks, properly
filled boiler and proper system air elimination.
Check Gas Piping:
For gas valve and piping leaks.
Check Boiler Controls:
For correct settings and
functioning. To include safety controls and calibration.
Check Air Filter: Replace (recommended) or clean.
System Heat Exchanger and Burner: For sooting,
corrosion or improper operation.
Blower and Circulator: Sealed components which do
not require lubrication.
The PRODIGY 21 control light panel has a complete set
of LED indicator lights which provide important
information at a glance about boiler operation:
Power Indicator (RED): Steady ON means there is
electrical power to the boiler. Light will come on when
power is provided to boiler.
Diagnostic Indicator (RED):
Steady ON or intermittent
flashing indicates a system operation problem.
Full Input Indicator (AMBER): Steady ON means the
boiler is running in high-fire mode. Light will come on
when boiler starts up; will go off when the boiler enters
the low-fire mode or shuts off.
Reduced Input Indicator (GREEN): Steady ON means
boiler is running in low-fire mode. Light will come on
when the boiler automatically switches to the fuel-
saving low-fire mode; will go off when boiler returns to
high-fire mode or shuts off.
WHAT THE INDICATOR
LIGHTS TELL YOU
Before calling a qualified service technician, check
the following first:
• Room thermostat is calling for heat?
• Fuse or circuit breaker is OK?
• Boiler service switch is ON?
• Gas supply is available to gas meter?
• Manual main gas shutoff is open?
• Boiler gas control arm is in ON position?
Then, observe indicator lights: You can help provide
useful information to the service technician so the
technician can arrive with appropriate replacement parts.
Carefully note the red diagnostic indicator light. When a
system failure occurs, and there’s power to the boiler,
the indicator light will show a series of quick flashes.
There will be a short interval between the series when
the indicator stops flashing.
Count the number of flashes that occur after the short
no-flashing interval. Using the chart above, determine
correct failure code for number of flashes you counted.
Call a qualified service technician and report your boiler
model plus the number of flashes you counted and the
code for the flashes.
Note: The boiler will attempt restart each hour and after
a power interruption. If boiler restarts, diagnostic light
will turn OFF. If boiler does not restart, diagnostic light
will return to either steady-on or the series of flashes.
IN CASE YOUR
BOILER SHUTS DOWN
BOILER FAILURE CODES
Continuous Flashing-- Electronic Control Failure
1 Flash ------------------- High Limit Open 1 Hour
2 Flashes ---------------- No Ignition
3 Flashes ---------------- Pressure Switch Open
4 Flashes ---------------- Hot Surface Ignitor Failure
5 Flashes ---------------- Blower RPM Too Low
6 Flashes ---------------- Low Water Cutoff Open
7 Flashes ---------------- Improper Flame Signal
Steady ON -------------- Loss Of Flame Signal
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