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  1. File Name: Weil-McLain Oil-Fired Water Boilers WTGO File Submitter: RegUS_PatOff File Submitted: 06 Jul 2013 File Category: Appliance Repair Manual Pot Luck Supper Weil-McLain Oil-Fired Water Boilers WTGO wtgo_boiler_manual 550-141-825 1211 wtgo_addendum 550-141-983 0108 Click here to download this file
  2. Version

    12 downloads

    Weil-McLain Oil-Fired Water Boilers WTGO wtgo_boiler_manual 550-141-825 1211 wtgo_addendum 550-141-983 0108
  3. Posted 27 July 2012 - 04:47 PM Weil Mclain WTGO-4 has been firing ok. It is used, at this time of year, solely for heating the domestic water in the internal tankless heater. The unit is a home heating oil fired one. Unit has a 1.25 gph 80* B Delavan nozzle. Top flue goes into a masonry chimney.The other day I noticed dark smoke from the chimney and immediately shut down the unit.  Thinking soot build up, I proceeded to thoroughly clean the heat exchanger grids, box, etc.  They were sooty (dry) but nothing really bad.  The blower motor, air inlets, etc., were dust covered (unit is in laundry room and I have 2 teenage boys) so I dis-assembled nearly everything (pump, blower cage, couplings, housing, etc., etc.  Cleaned lines, new filter, wiped everything clean and when I plugged it in  (it's on a connection harness, not hard wired as of now), it popped the GFI that is on that circuit.  It has however, been on a plug in since the Sandy debacle and has run without a problem.Re-set and it popped again.  Plugged it directly into another GFI unit and the positive leg welded itself to the GFI contact until I yanked them apart.  Really, the pos leg is now 1/8 " shorter.  I'm thinking DEAD SHORT.  (But where?) Beckett burner - RWB model Suntec strainer HONEYWELL ignition Unit does not have the auto purge feature of the newer ones. This one is 5+1/2 years oldI disconnected he Beckett from the wiring and tested it and it tests fine.I tested the wiring harness that I use and it tested fine.I tested the GFI and it tests fine I tested the circuit that I use and it tests fine. Nothing lights up or does anything because the GFI immediately trips.Lastly, but most important.  After removing the motor leads for the Beckett, I can't recall (with absolute certainty) to what other leads they were connected.  I've included a picture and would appreciate the correct wiring designations.  This one was my fault and stupid! It appears as though the WHITE motor lead needs to be connected to the WHITE ignition lead.It appears as though the BLACK motor lead needs to be connected to the ORANGE/BLACK (ignition/transformer connection.  I did find, underneath the service cut-off cover, a loose white wire (see picture) that appeared to be tack welded to the metal box.  It looked factory ( a ground) but, could it be a loose wire that welded itself to the box and is a/the problem?  It is now loose, but I will re-attach or cap it as necessary.  See pictures # 4 and # 5.  Should this be attached again?So, there you have it.  I repaired a mechanical issue, and now have an electric/electronic problem.As these were the only 2 wires that I disconnected this should resolve this issue, but i thought that they both had 3-wire connections.  My memory must not be working (shorted out?) I have included a picture of the Honeywell Aquastat #6. I have include a picture of the disconnect with the wire attached   #5I have include a picture of the disconnect with the wire unattached   #4I have included 3 pictures of the wire hook up for the motor ( for clarity) #s 1, 2, & 3 Below is the Photobucket  link. Help pleaseMr. Lee Fix   http://s1268.photobucket.com/user/Minolta101/library/Furnace?sort=3&page=1
  4. File Name: Weil Mclain Boiler WTGO Service Manual File Submitter: RegUS_PatOff File Submitted: 30 Jun 2013 File Category: Appliance Repair Manual Pot Luck Supper Weil Mclain Boiler WTGO wtgo_boiler_manual Click here to download this file
  5. Version

    11 downloads

    Weil Mclain Boiler WTGO wtgo_boiler_manual
  6. Weil Mclain WTGO-4 has been firing sporadically. It is used, at this time of year, solely for heating the domestic water in the internal tankless heater. The unit is a home heating oil fired one. Recently, usually in the early A.M., my wife says "The burners not lighting", and she was pushing the reset button on the HONEYWELL ignition and it would fire. Lately it won't fire, but if I crack the peep door, it fires. I close the view door, and go back to bed. Today it lit, but went out, and again on tries 3 and 4. FUEL in the tank. Filter is spotless and filter cannister is full but same problem and now it's as though there is no spark. Will not fire at all. Unit is in laundry area and does collect lint, but I've been keeping it clean. Unit came with a 1.25 gph 80* B nozzle. I later installed a 1.00 B nozzle as per technicians reccommendations/practices. My new tech (3 years now) has a .85gph, but I'm not sure of the pattern but he states that he runs it over-pressured. Got me. Okay, where to start? Top flue goes into a masonry chimney. It's bad enough that my clothes washer is down (that's another forum) but when you start messing with my hot water, that's a NO NO. And last I looked the wash drum of a commercial Maytag looked a bit uncomfortable. Just thinking aloud. At least the AC is working! Beckett burner - RWB model Suntec strainer HONEYWELL ignition Unit ddoes not have the auto purge feature of the newer ones. This one is 5+1/2 years old Lastly, this problem is repeating itself for the three years that I've been using my new tech, but it has never been this serious. Always, about 7 - 71/2 months after he tunes her (in November, this year December) it goes through this intermittent firing problem. This time, though it is much worse. Help please!