Burner Flame Pattern; Inspecting Burner; Pilot Flame Pattern; Cleaning And Maintenance - Mr. Heater MHVFB10LP Installation Instructions And Owner's Manual

Figure 16
Figure 17
CAUTION: Do not try to adjust heating level by using
equipment shutoff valve.
WARNING: When running heater, set control knob at
"LO" or "HI" locked positions. Poor combustion and
higher levels of carbon monoxide may result if heater
is operated with control knob positioned between
locked positions.
IMPORTANT: Release downward pressure while turning
control knob. Control knob must be locked at the
desired position.
TO TURN OFF GAS TO APPLIANCE
SHUTTING OFF HEATER:
1. Turn control knob clockwise to the OFF position.
2. Turn off equipment shutoff valve.
SHUTTING OFF BURNER ONLY (PILOT STAYS LIT)
1. Turn control knob clockwise to the PILOT/IGN
position.

INSPECTING BURNER

Check pilot flame pattern and burner flame pattern often.

PILOT FLAME PATTERN

Figure 21 show a correct pilot flame pattern. Figure 22
shows an incorrect pilot flame pattern. The incorrect
pilot flame pattern is not touching thermocouple. This
will cause the thermocouple to cool. When the thermo-
Control Knob
couple cools, the heater will shut down. If pilot flame
pattern is incorrect, as shown in Figure 22:
•
Turn heater off (see To Turn OFF Gas to Appli-
ance, page 11 for non-thermostat models).
•
See Troubleshooting, pages 14 and 15.

BURNER FLAME PATTERN

Figure 23 show a correct burner flame pattern. Figure 24
shows an incorrect burner flame pattern. If burner flame
pattern is incorrect, as shown in Figure 24:
•
Turn heater off (see To Turn OFF Gas to Appli-
ance, page 11 for non-thermostat models).
•
See Troubleshooting, pages 14 and 15.

CLEANING AND MAINTENANCE

WARNING: Turn off heater and let cool before
servicing.
CAUTION: You must keep control areas, burner and
circulation air passageways of heater clean. Inspect
these areas of heater before use. Have the heater
inspected yearly by a qualified service person. Heater
may need more frequent cleaning due to excess lent
from carpeting, bedding material, pet hair, etc.
10
Installation instructions and Owner's Manual
Figure 22
1/2 Steel Panel
Height
Figure 23
1/2 Steel Panel
Height
Figure 24