Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior
notice.
32(38)
IF ASH SCRAPER GETS STUCK
Let the burner cool down and shut off the main switch. Remove 2 burner bolts and swing lower door open. (Do NOT
detach burner from burner door!). Pour 1 – 2 oz. of water over the ash scraper into the burner bowl. Allow water to
dissolve the ash for 3 – 5 minutes. Close the door, tighten both burner door bolts evenly and start the burner. If the
above does not work, manually remove ash from the scraper using proper tools.
** NOTE ** DO NOT HIT THE ASH SCRAPER WITH ANY OBJECT
This may damage ash scraper motor gearbox.
To avoid problems of ash scraper getting stuck:
Properly set and adjust pellet weight and energy density values according to sections 4.5 and 4.6.
Shorten interval for ash scraping in user menu.
Control and fine tune combustion, see section 6.2.
PT100 Sensor Resistive Value Curve
80
90
100
110
120
130
140
150
-50 0 50 100 150 200 250
Temperature (F)
Resistive Value (Ohm)
Figure 10. PT Sensor Curve
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