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
CALL FOR HEAT – UNIT DOES NOTHING
• Green Light on Control Board is OFF. 24 VAC NOT
present between Sec & Com on board
Possible Causes
Check for loose connections
Check incoming power (115 VAC)
If incoming power is correct, check for 24VAC at
the secondary of the transformer. If incoming
voltage is correct and no voltage at the secondary,
replace transformer
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