Camus Hydronics MICOFLAME 2 Series, Installation, Operation And Service Manual

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20
19. TROUBLE SHOOTING GUIDE
SYMPTOM SOLUTION
1. Power light is not lit when switch is
flipped to “ON”
•
Check wiring to switch.
•
Check circuit breaker.
•
Check fuse.
2. Water flow light remains off.
•
Verify that pump is running.
•
Check wiring to flow switch.
3. Pilot sparks but does not light
•
Verify that main manual valve is open.
•
Follow lighting instructions to bleed air out of pilot
line.
•
Remove main burner and inspect for moisture or
dirt in pilot or in pilot line.
•
Verify that pilot is sealed to main burner base.
•
Verify that gas connections are tight.
4. Pilot lights momentarily, goes out
and then sparks again repeatedly
•
Observe pilot for proper flame. Adjust if necessary.
•
Check pilot flame signal. Properly set pilot to
generate 1.5 µA. D.C. on average.
•
Remove main burner and ensure that igniter and
ground electrodes are positioned properly. Clean
with steel wool if necessary.
•
Verify that back of burner box is fully engaged into
the retaining slot in the combustion chamber base.
5. Pilot lights but main burner does not
fire.
•
Verify that high limit is set high enough to prevent
short cycling.
•
Check pilot flame signal (µA).
•
Adjust pilot pressure for steady flame
•
Remove main burner. Check position of igniter and
ground electrode. Clean with steel wool if
necessary.
6. Main burner lights but cycles off after
a few minutes
•
Verify that high limit is set high enough to prevent
short cycling.
•
Adjust pilot pressure for steady flame
•
Remove main burner. Adjust pilot shield and clean
ignition sensor.
7. Boiler starts to whine as the
temperature rise increases.
•
Verify that all air is bled from system.
•
Verify that the static pressure in cold system is at
least 15 psig.
•
Check temperature rise across boiler to ensure
adequate water flow.
•
If necessary, increase static water pressure and
decrease gas pressure.