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in the burner model LT40UH, LT45UH, LT60UH separate burner from the furnace.
then also separate the flange tube, and follow the adove procedure for
replacement.
b) how to disassemble and check nozzle
① separate filter (㉣). clean the filter using kerosene.
② separate the gelical support (㉢) using a screwdriver. clean the groove (㉡) using
kerosene and thin wire. do not use iron wire or needle. otherwise the nozzle hole
may widen.
③ after the nozzle hole is clean, assemble nozzle in the reverse order.
◉ make it fasten it set up.