Troubleshooting Instructions - Mr. Heater Portable Buddy MH9BX User Manual And Product Specifications

troubleshooting Instructions

problem
If Spark electrode does not produce
spark.
If Spark electrode produces spark but
pilot does not light.
If Pilot flame does not stay lit when knob
is released.
If Main burner does not ignite.
If Heater keeps shutting "OFF" during
normal operation.
Check spark electrode; if defective, replace ODS
(Oxygen Depletion Sensor).
Check igniter wire is correctly attached to spark
electrode.
Check igniter wire; if damaged, replace.
Check piezo igniter; if defective, replace control
valve.
No gas to heater – install disposable cylinder or
connect hose and filter where required and turn on
valve at remote cylinder.
Check if "PILOT" position is properly aligned – turn
gas control knob to "PILOT" position and depress.
Check is pilot is blocked from spider web or dirt –
clean pilot, see MAINTENANCE.
Check if control knob in "PILOT" position not
completely depressed or held in long enough to
purge air from lines.
If pilot flame is not surrounding thermocouple – clean
pilot, see MAINTENANCE.
Check if pilot assembly is defective – replace.
Check if tip switch wires are disconnected – connect.
Check if main burner orifice is blocked – clean
burner, see MAINTENANCE.
Check if pilot is blocked – clean pilot, see
MAINTENANCE.
Tip over switch may have been activated from
bumping heater. Re-light.
Check if regulator is defective - Replace regulator.
Check for internal contamination - Replace control
valve and regulator.
Call Technical Services for additional information.
remedy