Anderson ANM75 Kullanım Kılavuzu - Sayfa 12

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– Visually check igniter cable and connectors.

– Be sure the burner bodies and air wings, the ignite and the flame sensors are not

damaged or distorted.

12. Troubleshooting Procedures

Problem

Cannot initiate a

start sequence

Start–up sequence

runs but

burner does not light

Anderson Thermal Soluions（Suzhou）Co. ,Ltd.

Anderson Thermal Solutions – ANM75 Burner Operation Manual

Possible Cause

Air pressure switch has not made

contact

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.

PILOT IGNITION ONLY

Pilot gas pressure low

Pilot gas cock closed

Pilot solenoid valve close

Gas adjusting valve set too low

Air in the pilot line

PILOT IGNITION OR DIRECT SPARK

Attempting to ignite at inputs greater

than 60%

Weak or non–existent spark.

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

Adjust pilot gas pressure

Open pilot gas cock

Check wire for solenoid valve

Increase opening of the valve

Repeat start for several times

Reduce start point gas flow.

Verify control circuit.

Verify ignition transformer is a 6,000 –

8,000 Volt transformer

Solution