Service manual

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© January 2013 Aqua-Hot
®
600-D01 Series Hydronic Heating System Service Manual - Rev. A
APPENDIX D: AQUA-HOT MAINTENANCE
Step 8: Clean Ignition Electrodes and Flame Sensor
1. Ignition electrodes -
A. Polish away any carbon deposits that may have baked onto the metal tips
of the ignition electrodes with a course sponge.
2. Flame Sensor -
A. For light dirt, dust, and/or carbon deposits, simply wipe off the flame
sensor with a soft cloth.
B. Should heavy carbon deposits be present, completely remove the flame
sensor from the photo disc and clean with brake cleaner.
Electrode Tips
Flame Sensor
Figure D8