Mr. Heater H4B - Manual (Page 5)

5
Operating Instructions and Owner’s Manual Mr. Heater MH4B | Base Camp MH4BC
TROUbLESHOOTING INFORMATION:
If Spark electrode does not produce spark.
CHECK
• Spark electrode broken – replace.
• Igniter wire may not be attached to spark
electrode.
• Igniter wire damaged – replace.
• Piezo igniter defective – replace regulator valve
assembly.
If Spark electrode produces spark but pilot does not light.
CHECK
• No gas to heater – re-install or replace gas
cylinder.
• Pilot is blocked from spider web or dirt – clean
pilot, see MAINTENANCE.
If Pilot flame does not stay lit when button is released.
CHECK
• “Pilot/Ignition” button not held long enough
to purge air from line.
• Pilot flame not surrounding thermocouple –
clean pilot, see MAINTENANCE.
• Pilot Assembly defective – replace.
•
Tip switch wires disconnected – connect
tip switch (check off switch and off switch
wiring).
If Main burner does not ignite.
CHECK
• Main burner orifice is blocked – clean burner,
see MAINTENANCE.
If Heater keeps shutting “OFF” during normal operation.
CHECK
• Pilot is blocked – clean pilot, see
MAINTENANCE.
• Provide minimum fresh air opening of 4 square
inches (example 2” x 2” opening).
• Tip over switch activated from bumping heater.
Re-light
—INTENTIONALLY LEFT bLANK —