Janfire NH Installation And Servicing Instructions page 32

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.
150
140
130
120
110
100
90
80
-50
Figure 10. PT Sensor Curve
Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior
notice.
PT100 Sensor Resistive Value Curve
0 50 100 150
Temperature (F)
200 250
)
32(38