Anderson VFI84 Panduan Pengoperasian - Halaman 11

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11. 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

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.