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Power surge killed oil fired furnace


bgbuffalo

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Power line was knocked down by a tree in a storm last night. Furnace took a hit. I have replaced the aquastat (internal transformer melted), 24v transformer and now have isolated the problem to the primary oil burner control and possibly Becket ingnition control, but one thing at a time here. This is a oil, hot water furnace.

The current primary relay control is a Honeywell R4164D. I cannot find any info about a replacement online. Everyone seems to use the R8184 series which I think I could jump the thermostat circuit because my aquastat will control the line feed to the control. Does anyone no if this is feasable?  

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R8184 was an acceptable replacement although I had to jump the "T" connectors because the aquastat controls the burner via line voltage. I also found that the ignition control unit on the burner itself was fried. Replaced that and the thing fired up fine.

The surge destroyed a 24v transformer, aquastat, primary control relay and ignition control. A total of about $250 worth of parts.

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