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We are McLennan boiler only goes up to 140°
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criv
Member Posts: 1
in Gas Heating
What do you think the problem could be on my wheel McLean boiler it only goes up to 140° even though I have the digital control board set for 200
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Comments
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Is the ODR outdoor reset function enabled? That limits temperature based on outdoor temperature.Bob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream0 -
What digital control board? If it's the Hydrostat 3250 Plus, then check to see if the jumper B is installed. If it is, remove it. Then turn the High limit down to 160°. But given almost zero information, thats just a stab in the dark.0
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Tell us more about your system please. What type of radiators? Baseboards? cast iron?
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Does your WHEEL McLennan boiler actual have wheels, are you sure it is not a McLaren with Wheels like a Formula 1, or maybe an IndyCar, or perhaps an Extreme E car?
If However you have one of the newer Weil-McLain boilers that is using a modulating control system and has outdoor sensing, the boiler may not get to 200° ever... unless you have it connected to an indirect water heater.Edward Young Retired
After you make that expensive repair and you still have the same problem, What will you check next?
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Not everyone is able to see or type so they use voice transcription which is a great help to them, so let’s have some grace about it I humbly suggestNJ Steam Homeowner. See my sight glass boiler videos: https://bit.ly/3sZW1el0
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Post a photo of your boiler and we may be able to help. Take one from about two feet away and a second photo from about ten feet away0
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