Product Troubleshooting
Table Of Contents
- Troubleshooting HD Direct Spark Units
- How to use this application
- Table of contents
- Definitions & Basic Operation
- Flame Status - Yellow LED labeled “FLAME”
- Heating Sequence of operation
- End of Heating Sequence of operation
- Call for heat – unit does nothing
- Call for heat – unit does nothing
- Call for heat – unit does nothing
- Call for heat – unit does nothing
- Call for heat – unit does nothing
- Call for heat – unit does nothing
- Troubleshooting flash codes
- Troubleshooting flash codes
- No flashes – Troubleshooting codes
- One Flash - Troubleshooting codes
- One Flash – No Power Exhauster
- One Flash – Pressure switch Won’t close
- Two flashes - Troubleshooting codes
- Three Flashes - Troubleshooting codes
- Three Flashes - Troubleshooting codes
- Four Flashes - Troubleshooting codes
- Four Flashes - Troubleshooting codes
- Four Flashes - Troubleshooting codes
- Four Flashes - Troubleshooting codes
- Four Flashes - Troubleshooting codes
- Four Flashes - Troubleshooting codes
- Four Flashes - Troubleshooting codes
- Four Flashes - Troubleshooting codes
- Four Flashes - Troubleshooting codes
- Four Flashes - Troubleshooting codes
- Five Flashes - Troubleshooting codes
- Six Flashes - Troubleshooting codes
- Six Flashes - Troubleshooting codes
- Six Flashes - Troubleshooting codes
- Seven Flashes - Troubleshooting codes
- Before REPLACING THE CONTROL BOARD
- For additional help Installation & Service manual live operators
- Slide Number 41
ONE FLASH – NO POWER EXHAUSTER
• Pressure switch does not close within 30 seconds of inducer energized
• Unit sequence:
• Green Light on, call for heat, 24 volts at R & W on
board. Nothing happens. Green light will give One
flash. Fan motor will not cycle on.
• Possible cause:
• Defective exhauster motor. Receiving 115 volts from
IND and NEUTRAL terminals on board, but will not
run. Replace exhauster.
• Defective board. Not sending 115 volts from IND and
NEUTRAL terminals to exhauster. Replace board
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