General Troubleshooting Guide - Slant/Fin Victory II VHS-30EP Installation And Operating Instructions Manual

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General Troubleshooting Guide For Service people
BURNERS FAIL TO OPERATE
CAUSE
1. Gas supply valve shut off
2. No power, main electric switch open
3. No power, blown or defective line fuse
4. Pilot flame too low
5. Flame sensor contaminated
6. Roll-out switch open
7. Defective air flow switch, restriction or obstruction in
venting system
8. Defective blower motor
9. Defective transformer
10. Defective gas valve
BURNERS WILL NOT SHUT-OFF
CAUSE
1. Defective boiler control
2. Improper wiring or short circuit
FLASH BACK-BURNING AT ORIFICES
CAUSE
1. Manifold gas pressure too low
2. Improper primary air adjustment
3. Gas regulator bleed too slow
4. Burrs on orifices
5. Improper orifice
6. Adverse draft condition in boiler room
7. Low main gas pressure
REMEDY
1. Open gas valve
2. Close switch
3. Replace fuse
4. Adjust pilot flame
5. Clean sensor
6. Replace roll-out switch (inspect flue passages prior to
replacement)
7. Check air flow switch hose connections. Check for obstruction
or restriction in venting system. Replace defective switch
8. Check voltage (120V) at motor connector. Replace
defective motor
9. Replace Aquastat
10. Replace
REMEDY
1. Replace defective boiler control
2. Check wiring
REMEDY
1. Adjust to proper manifold pressure
2. Adjust air to produce soft, clean flame
3. Adjust bleed opening
4. Remove burrs
5. Install proper orifice size
6. Check air supply and venting system
7. Contact utility
V II
ICTORY VHS Models