Find great deals for Buderus Logamatic R so Heizungsregelung. Shop with confidence on eBay!. The R is a microprocessor-based control for use with hydronic heating systems. The R features weather compensation for maximum comfort and fuel. Buy New or Surplus BUDERUS (LOGAMATIC BOILER CONTROL 30% FUEL USAGE REDUCTION) parts. Radwell also repairs BUDERUS

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Results 1 to 5 of 5. Buderus Logamatic burner no start when boiler cold. Thread Tools Byderus Printable Version. Buderus Logamatic burner no start when boiler cold Greetings folks. Here’s a good one!

Bueerus am running a Buderus Logamatic with a Riello R40 burner that I maintain, and all runs well, normally. Boiler is a Buderus Periodically, when the temp of the boiler drops to around 80 degrees, fall 50 degree nights after 70 degree days the Logamatic appears to experience a “cold” lockout bueerus will not fire up the burner. Not much thermal load is needed at these times.

The circulators continue to run continuously, the flame appears on the LCD screen, the relay clicks, but no power to the burner.

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The boiler temperature continues to fall to ambient temperature around 60 degrees. Eventually the display will read Burner error. Burner does not fire up in manual mode either. Powering down and back up makes no difference. Adjusting the aquastat knob on the does not help either. Logamatic turns on, burner relay clicks, flame comes on LCD, and no power to the burner! Bhderus, the connections are tight!! I then short out the two end wires on the buerus limit shutdown box to the left of the aquastat knob.

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Buderus Logamatic 2107 R2107 so Heizungsregelung

Immediately the burner fires up! I keep the wires shorted until the buerus reaches a temp of about degrees. Them I have to force the burner on again to get the boiler temp to about Note that this only occurs a few times a year as well!!

Can someone tell me what’s up with this? It really seems like a “cold lockout”.

I can’t find anything about this in the manuals. I know about the safety high limit reset, but this is happening when cold!! I have found some similar posts but they seem to have had other causes like external aquastats, and DHW sensor issues.

This has me stumped! This forum requires that you wait 20 seconds between posts. Please try again in 50 seconds. Experience – knowing when to get the hell out of the way and plug your ears. Relay is good, as is burner motor. I am leaning to the high limit or aquastat that is causing a false cut off. Maybe something funky with capillary tube off the aquastat? Hopefully someone else has come across this. As stated above, we can’t give DIY repair advice, sorry.

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Rules For Equipment Owners. How long has this been installed? How long has it been doing these “antics”?

Sounds like a bad connection if I didn’t know any better. The ‘s are reliable controls. General Buderuz Pro’s Forum: Oil Burners Pro’s Forum: Building Science Discussions Pro’s Forum: Training and Education Pro’s Forum: Valves, Regulators, Filters, Etc. Power Quality Pro’s Forum: Getting Pumped for !

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