Troubleshooting - Mr. Heater MH4B Instrucciones Del Usuario

TROUBLESHOOTING INFORMATION:
If Spark electrode does not produce spark.
CHECK
•­ Spark­electrode­broken­–­replace.
•­ Igniter­wire­may­not­be­attached­to­spark­
electrode.--­attach
•­ Igniter­wire­damaged­–­replace.
•­ Piezo­igniter­defective­–­replace­gas­valve­
assembly.
If Spark electrode produces spark but pilot does not light.
CHECK
•­ No­gas­to­heater­–­re-install­or­replace­gas­
cylinder.
•­ Pilot­is­blocked­from­spider­web­or­dirt­–­clean­
pilot,­see­MAINTENANCE.
If Pilot flame does not stay lit when button is released.
CHECK
•­ "Pilot/Ignition"­button­not­held­long­enough­
to­purge­air­from­line.
•­ Pilot­flame­not­surrounding­thermocouple­–­
clean­pilot,­see­MAINTENANCE.
•­ Pilot­Assembly­defective­–­replace.
•
Tip­switch­wires­disconnected­–­connect­
tip­switch­(check­off­switch­and­off­switch­
wiring).
If Main burner does not ignite.
CHECK
•­ Main­burner­orifice­is­blocked­–­clean­burner,­
see­MAINTENANCE.
If Heater keeps shutting " O FF" during normal operation.
CHECK
•­ Pilot­is­blocked­–­clean­pilot,­see­
MAINTENANCE.
•­ Provide­minimum­fresh­air­opening­of­4­square­
inches­(example­2"­x­2"­opening).
•­ Tip­over­switch­activated­from­bumping­heater.­
Re-light­
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Mr. Heater MH4B Operating Instructions and Owner's Manual
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