14
Eclipse ExtensoHeat Lance Burners, V1, Installation Guide 235, 5/23/2011
Troubleshooting
Problem
Possible Cause
Solution
Cannot initiate startup
sequence
Air pressure switch has not made contact
Check air pressure switch adjustment.
Check air filter. Check blower rotation from
blower
High gas pressure switch has tripped
Check incoming gas pressure. Adjust gas
pressure if necessary. Check pressure
switch setting and operation
Low gas pressure switch has tripped
Check incoming gas pressure. Adjust gas
pressure if necessary. Check pressure
switch setting and operation
Insufficient process temperature
Check the temperature. Increase the
temperature if necessary. Check safety
thermostat settings and operation
Main power is off
Make sure the power is on to the control
system
No power to control unit
Call qualified electrician to investigate
Startup sequence runs but
burner does not light
Too much gas: Manual gas balancing
valves have been opened too far
Check pressures and settings against
start-up report and adjust as necessary
Too much gas: Gas pressure out of the
main gas pressure regulator is too high
Check start-up setting. If necessary,
remove regulator and investigate
Not enough gas: Gas pressure out of the
main gas pressure regulator is too low
Check start-up setting. Check regulator
and adjust if necessary
Not enough gas: Start gas solenoid valve
does not open
Check solenoid valve coil for proper
orientation. Replace if necessary
Not enough gas: Gas valve not open
Check wiring to the automatic gas shut-off
valve
Not enough gas; pilot solenoid valve does
not open
Have a qualified electrician check power
supply to solenoid
Not enough pilot gas: Air in the gas line
Check output from the flame safeguard.
Open gas cock. Purge gas line
Oxygen and/or temperature levels too low Stop the installation and verify the design
data
The low fire flame is weak
and unstable
Low fire adjusted too low
Increase low fire gas setting
Not enough gas
Check start-up settings and adjust to
increase low gas flow
Not enough air
Check start-up settings. Investigate any
changes, i.e. blocked filter, loose
connections
The burner goes off when it
cycles to high fire
Insufficient air (flame too rich)
Check start-up settings. Check that the air
filter is clean and replace if required
Insufficient oxygen level
Stop the burner(s) and restore the
minimum conditions before putting it back
in service
Oxygen and/or temperature levels too low Stop the installation and verify the design
data
The burner is erratic and
does not respond to
adjustment
Internal damage to the burner. Some parts
inside the burner may be loose or dirty
Contact Eclipse
