Anderson VFI84 Betriebshandbuch - Seite 11
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Seite drucken11. Troubleshooting Procedures
Problem
Cannot initiate a start
Air pressure switch has not made contact
sequence
High gas pressure switch has activated.
Low gas pressure switch has activated
Purge cycle not completed.
Malfunction of the flame safeguard system
(e.g., flame sensor failure or electrical noise
in the sensor line).
No power to the control unit.
Main power is off.
Start-up sequence
There is no power to the ignition
runs but burner does
transformer
not light
No power to ignition transformer or wire
broken between transformer and sparker
The igniter needs cleaning
The igniter is not correctly grounded to the
burner
Too much gas: Improper gas valve train
sequence
Too much gas: Manual gas control valve
have been opened too far
Too much gas: Gas pressure out of the
main gas pressure regulator is too high
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Possible Cause
9
Solution
Check air pressure switch adjustment.
Check air filter.
Check blower rotation.
Check outlet pressure from blower.
Check incoming gas pressure, adjust if
necessary.
Check pressure switch setting and operation
Check flame safeguard system or purge timer.
Have a qualified electrician troubleshoot and
correct the problem.
Be sure the main power to the system is
switched to the "on" position.
Restore the power to the ignition transformer
Check electrical connection between
transformer and sparker.
Clean the igniter
Clean the threads on the igniter and the
burner. NOTE: Do not apply grease to the
threads on the igniter
Verify solenoid valve is down-stream of
proportionator
Check pressures and settings against start-up
report and adjust as necessary
Check start-up setting. If necessary, remove
regulator and investigate.