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Russ Johnson

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Posts posted by Russ Johnson

  1. Posted · Report reply

    Epps 4430 has a pressure switch and a thermostat in addition to the main power switch. When you turn the switch on, you should get a stream of air coming up the stack. This would indicate that the burner motor is running. The light coming on on the switch tells me power is getting where it needs to go. First and easiest check is the pressure switch. Remove the cover on the side. You will see a micro switch with 3 wires connected. Start the machine, switch the burner on, and take a screwdriver and jump the top 2 terminals momentarily. If it doesn't light right off, shut it down. Remove the access panel where the main power switch is mounted. Take the wires off the thermostat and jump them with a short piece of wire. Repeat the above start / jump procedure. Still no fire? Shut it down. Here's where it gets a bit complicated. Inside the burner housing is a cad cell designed to drop the transformer out of the circuit after a flame front is established, saving battery amperage. Hinge the transformer open and find the red wire coming out of the transformer. It will go to the wire that is controlled by the cad cell. Remove it and hook it up to the wires that feed the burner motor, insulating any wires that are left disconnected. Close the trans former, and repeat the above start / jump. If it fires now, the cad cell has gone bad. It will work this way, but puts extra strain on the charging system. Unfortunately, as far as I know, the cad cell cannot be ordered sepeately, you must buy the complete transformer to replace it. If you have any questions during testing, call me on my cell 502-724-8491. should have it with me all afternoon.

  7. Posted · Report reply

    My only thought is will this be run full time or as a back up when your primary machine breaks or as an extra on really big jobs? Your return on your investment will depend on hours run per week. Sound like real similar set ups, one being a little smaller than the other. 4500 on the gauge?? Does it zero out when it's shut off? If not, this is evidence of possible past freezing.

  16. Posted · Report reply

    BD-20 is a butyl based degreaser containing 6% butyl and sodium metasilicate. It works great on gutters and siding, is non toxic to plants, and can be mixed with bleach for mold and mildew. I have purchased various other butyl based products for testing and BD-20 has 50% more dissolved solids than the competitors. Barry may very well have been able to downstream BD-20 on his gutter work, as the stains were fairly light. At worst, it can be mixed 1:4 and brushed lightly with outstanding results. It can be purchased in gallons, 5 gallon pails, 55 gallon drums, and 3 part drum kits. All but the drums can be shipped Fed Ex non hazardous.

  25. Posted · Report reply

    Here's a link to the service instructions for General.

    GP Service

    Parts Breakdown

    A couple of things they don't mention:

    Internal pliers or a slide hammer puller can be used to extract the brass rings.

    Always replace the copper washers if you remove the plungers.

    I would rebuild as soon as possible, as it can only get worse. You've caught it now before major damage is done.

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