Question about Dayton (4LX41) Heater

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DAYTON 4LX48 HANGING HEATER

UNIT WILL NOT STAY RUNNING UNLESS PRESSURE SWITCH IS JUMPED, AFTER IT IS JUMPED THE UNIT WILL RUN FOR 10-15 MIN. THEN IT WILL LOCK OUT ON HIGH LIMIT, FAN IS STILL RUNNING.

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Exhaust is restricted or crack in heat exchanger. Get someone to look at it!

Posted on Feb 14, 2008

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it this a natural draft, or is if equiped with an inducer draft motor. would be the inducer is not coming on and closing the pressure switch. just a guess. need more info. does it flash any codes or is there even a board on it. is this a hanging unit heater or a standard upflow residential heater.

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check for proper pump pressure. Restricted fuel flow. Proper venting of fuel cap.

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