19
32-00057—01
Troubleshooting
Problem
Possible Cause
Solution
The low fire flame is weak or
unstable.
Not enough gas flowing to the burner.
Adjust the ratio regulator or bypass fuel
adjustable orifice valve to increase the gas
flow.
Not enough air.
Check for proper blower rotation. Check air
filter for blockage. Compensate for
chamber by opening the low fire air butterfly
valve position.
The burner goes out when it
cycles to high fire.
Not enough gas pressure into the ratio
regulator.
Check the start-up settings. Measure the
gas pressures and adjust them where
necessary. Check for valve train pressure
loss.
Loading line to the ratio regulator is leaking. Repair the leak in the loading line.
Not enough gas flowing to the burner.
Adjust the ratio regulator to increase the
gas flow.
Fuel bypass line is not set correctly
Set fuel bypass pressure per datasheet.
Additional minor adjustments to the fuel
bypass ALO valve may be required to
achieve a stable flame through the
transition between low and high fire.
The burner is erratic and
does not respond to
adjustment.
Internal damage to the burner. Some parts
inside the burner are loose, dirty or burned
out.
Contact Eclipse for further information.
The burner is unstable or
produces soot, smoke, or
excessive carbon monoxide.
The air/gas ratio is out of adjustment.
Measure all the gas pressures and air
pressures. Compare these pressures to the
documented initial start-up settings and
adjust them where necessary.
The burner cannot achieve
full capacity.
Air filter is blocked.
Clean or replace the air filter.
Gas pressure going into the ratio regulator
is too low.
Adjust the gas pressure.
Cannot initiate a start
sequence.
Air pressure switch has not made contact. Check air pressure switch adjustment.
Check air filter. Check blower rotation.
Check outlet pressure from blower.
High or low gas pressure switch has
activated.
Check incoming gas pressure. Adjust gas
pressure if necessary. Check pressure
switch setting and operation.
Malfunction of the flame safeguard system
(e.g. shorted-out flame sensor or electrical
noise in the sensor line).
Have a qualified electrician troubleshoot
and correct the problem.
No power to the control unit.
Have a qualified electrician troubleshoot
and correct the problem.
Main power is off.
Be sure the main power to the system is
switched to the “On” position.
