750-204
Profire D/LND
6-5
6.3 — Troubleshooting
Problem
Solution
Shutdown Occurs During Firing
1. Loss or stoppage of fuel supply.
2. Defective fuel valve, loose electrical connection.
3. Flame detector weak or defective.
4. Scanner lens dirty or sight tube obstructed.
5. If the programmer lockout switch has not tripped, check the limit circuit for
an opened safety control.
6. If the programmer lockout switch has tripped:
a. Check fuel lines and valves.
b. Check flame detector.
c. Check for open circuit in running interlock circuit.
d. The flame failure light is energized by ignition failure, main flame failure,
inadequate flame signal, or open control in the running interlock circuit.
7. Improper air/fuel ratio (lean fire).
a. Slipping linkage.
b. Damper stuck open.
c. Fluctuating fuel supply:
Temporary obstruction in the fuel line.
Temporary drop in gas pressure.
Orifice gate valve accidentally opened (heavy oil).
8. Interlock device inoperative or defective.
9. Air in the oil lines. Bleed the lines.
Problem
Solution
Modulating Motor Does Not
Operate
1. Manual/automatic switch in wrong position.
2. Linkage loose or jammed.
3. Motor does not drive to open or close during pre-purge or close on burner
shutdown.
a. Motor defective.
b. Loose electrical connection.
c. Damper motor transformer defective.
4. Motor does not operate on demand.
a. Manual/automatic switch in wrong position.
b. Modulating control improperly set or inoperative.
c. Motor defective.
d. Loose electrical connection.
e. Damper motor transformer defective.
Summary of Contents for ProFire D Series
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Page 16: ...viii 750 204 Profire D LND...
Page 30: ...Installation 2 2 750 204 Profire D LND FIGURE 2 1 Recommended Scotch Marine Chamber Dimensions...
Page 39: ...750 204 Profire D LND 2 11 2 13 Installation Checklist FIGURE 2 7 Recommended Pipe Size...
Page 40: ...Installation 2 12 750 204 Profire D LND FIGURE 2 8 Recommended Pipe Size...
Page 42: ...Installation 2 14 750 204 Profire D LND FIGURE 2 10 Recommended Pipe Size...
Page 43: ...750 204 Profire D LND 2 15 2 13 Installation Checklist FIGURE 2 11 Recommended Pipe Size...
Page 44: ...Installation 2 16 750 204 Profire D LND FIGURE 2 12 Recommended Pipe Size...
Page 45: ...750 204 Profire D LND 2 17 2 13 Installation Checklist FIGURE 2 13 Recommended Pipe Size...
Page 46: ...Installation 2 18 750 204 Profire D LND FIGURE 2 14 Recommended Pipe Size...
Page 50: ...Installation 2 22 750 204 Profire D LND...
Page 69: ...750 204 Profire D LND 4 11 4 8 Firing Rate Controls FIGURE 4 7 Motor Rotations...
Page 70: ...Adjustments 4 12 750 204 Profire D LND...
Page 82: ...Maintenance 5 12 750 204 Profire D LND...
Page 88: ...Troubleshooting 6 6 750 204 Profire D LND...
Page 98: ...Flue Gas Recirculation 8 6 750 204 Profire D LND FIGURE 8 4 FGR Piping and Valve Sizes...
Page 100: ...Flue Gas Recirculation 8 8 750 204 Profire D LND FIGURE 8 6 20 PPM Head Assembly...
Page 106: ...Parts Lists and Drawings 9 6 750 204 Profire D LND 9 4 2 Blast Tube Assembly D378 420...
Page 108: ...Parts Lists and Drawings 9 8 750 204 Profire D LND 9 4 3 Blower Housing Assembly D42 175...
Page 110: ...Parts Lists and Drawings 9 10 750 204 Profire D LND 9 4 4 Blower Housing Assembly D210 336...
Page 112: ...Parts Lists and Drawings 9 12 750 204 Profire D LND 9 4 5 Blower Housing Assembly D378 420...
Page 114: ...Parts Lists and Drawings 9 14 750 204 Profire D LND 9 4 6 Compressor Set D42 145...
Page 116: ...Parts Lists and Drawings 9 16 750 204 Profire D LND 9 4 7 Compressor Set D175 336...
Page 118: ...Parts Lists and Drawings 9 18 750 204 Profire D LND 9 4 8 Compressor Set D378 420...
Page 120: ...Parts Lists and Drawings 9 20 750 204 Profire D LND 9 4 9 Control Package Fireye...
Page 122: ...Parts Lists and Drawings 9 22 750 204 Profire D LND 9 4 10 Control Package Honeywell...
Page 124: ...Parts Lists and Drawings 9 24 750 204 Profire D LND 9 4 11 Damper Assembly D42 420...
Page 126: ...Parts Lists and Drawings 9 26 750 204 Profire D LND 9 4 12 Damper Assembly LND42 420...
Page 128: ...Parts Lists and Drawings 9 28 750 204 Profire D LND 9 4 13 Drawer Assembly D42 63...
Page 130: ...Parts Lists and Drawings 9 30 750 204 Profire D LND 9 4 14 Drawer Assembly D84 145...
Page 132: ...Parts Lists and Drawings 9 32 750 204 Profire D LND 9 4 15 Drawer Assembly D175 336...
Page 134: ...Parts Lists and Drawings 9 34 750 204 Profire D LND 9 4 16 Drawer Assembly D378 420...
Page 136: ...Parts Lists and Drawings 9 36 750 204 Profire D LND 9 4 17 Firing Head Assembly D42 420...
Page 139: ...750 204 Profire D LND 9 39 9 4 Parts Lists and Drawings 9 4 19 Oil Heater D42 420...
Page 146: ...Parts Lists and Drawings 9 46 750 204 Profire D LND 9 4 22 Oil Metering Assembly D378 420...
Page 156: ...750 204 Profire D LND...
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