Troubleshooting Guide - Eclipse ThermJet TJSR0020 Installation Manual

Troubleshooting Guide

Problem
Cannot initiate start sequence
Start-up sequence runs but burner
does not light
Eclipse ThermJet Self-Recuperative, V5, Installation Guide 208, 2/4/2013
Possible Cause
Main power is off
No power to control
Air pressure switch has not
contact
High gas pressure switch has tripped Check incoming gas pressure.
Malfunction of flame monitoring
system such as shorted out flame
sensor or electrical noise in the sensor
line
Purge cycle not completed
No ignition:
• There is no power to the ignition
transformer
No ignition:
• Open circuit between the ignition
transformer and the spark plug
No ignition:
• The spark plug needs cleaning
No ignition:
• The spark plug is not correctly
grounded to the burner
Too much gas:
• Improper gas valve train sequence
Too much gas:
• Manual gas butterfly valves have
been opened too far
Too much gas:
• Gas pressure out of the main gas
pressure regulator is too high
Not enough gas:
• The gas pressure out of the main gas
pressure regulator is too low.
Not enough gas:
• Start gas solenoid valve does not
open
Make sure power is on to control
system.
Call qualified electrician to investigate.
made
Check air-pressure switch adjustment.
Check air filter.
Check blower rotation.
Check outlet pressure from blower.
Adjust gas pressure if necessary.
Check pressure switch setting and
operation.
control Have a qualified electrician investigate
and rectify.
Check flame monitoring control
system, purge timer, interlocks and
limit switches.
Restore power to the ignition
transformer.
Check flame monitor controller.
Repair or replace the wiring and
connectors to the spark plug.
Check ground connection to the
transformer.
Clean the spark plug.
Clean the threads of the spark plug
and the burner.
Do not apply grease to the thread of
the spark plug.
Verify solenoid valve is down stream
of proportionator.
Check pressures and settings against
startup report and adjust as
necessary.
Check startup setting and, if
necessary, remove regulator and
investigate.
Check startup settings, then check
regulator and adjust if necessary.
Check solenoid valve coil for proper
operation. Replace if necessary.
Solution
17