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 > Your search for posts made by 'dougrainer' found 1069 matches.

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RE: Atwood 8500 series furnace bench test on high limit switch

Zero(0) IS the smallest square bit. I was thinking of the No 1 that is used on some Canadian built door cabinet latches. Doug
dougrainer 03/04/21 11:12am Tech Issues
RE: Help hooking up power to back up camera

1. The original Back up camera system has NO Reverse wire connection at the REAR of the motorhome. The reverse is activated at the front Dash area to the original dash monitor and when the reverse transmission Hyd switch is engaged the wire is sent to the Dash Monitor harness and the Dash Monitor then sends the activation/power thru the multiwire harness connected to the rear camera. 2. The 3 wires you mention. Are these at the rear Tailight/Reverse light lamp assbly? If so, then the Yellow is usually the Reverse Pos wire. The Green would be running lights and the white ground. 3. The SAFE way to test is what I do. I have someone at the drivers seat with the Air brake engaged and then run the engine and have them shift to reverse WITH THEIR FOOT ON THE BRAKE PEDAL. Doug The three wires feed the back up light bulb, and I was trying to determine which is power and which is ground in order to hook up the two wires from the Garmin wireless transmitter. It would help to see the wiring diagram, but I've not found one in the stuff I have, nor on line. The white will be ground on Monaco products. Usually the Reverse BULB is a single pin bulb. But, since you state 3 wires, are you positive that the other wire is NOT the running lights? Have you removed the bulb to see if it has 1 contac or 2 contacs on the bottom of the bulb? Is the rear assbly have both the Running and Reverse light bulbs in one assbly? Turn on the running lights and see which wire is 12 volt positive. Is it possible the assbly has the BRAKE light bulb and the Reverse light bulb? Doug
dougrainer 03/04/21 11:10am Class A Motorhomes
RE: Atwood 8500 series furnace bench test on high limit switch

I only ever heard them called Robertson "up here". I suppose that is changing with younger people, don't know. Square Drive new to me until today. I am 66 years old and have been in the RV industry for 50 years. Never heard them called Robertson until about 15 years ago on an RV forum. Doug
dougrainer 03/03/21 07:21am Tech Issues
RE: Norcold Fridge on Propane Question

Really? What is an RM8,there is virtually no info on the net.And,seems you do not understand logic,when the thermostat calls for more cooling, the flame gets higher, and the increased flame makes the ammonia heater work harder, producing more potential to remove heat from the inside of the refrigerator.AND,as it appears you do nothave/own a fully electronic refrig. your symptoms are perfectly normal.same as if you do not take your foot off the gas pedal, when rushing downhill. :h So when the fridge is running on 120V instead of propane does the heating element receive more power to make it hotter. It seems someone here does not understand how an absorption fridge controls the temperature in the N306. :) BYPASS Refers have a BYPASS tstat that regulates the flame height. These refers have an additional mechanical 120 volt point Tstat. You do not understand how it controls. This particular refer does NOT have a Bypass tstat. It has a mechanical GAS tstat. The instructions clearly state that it has LOW-MED-HI for Gas control. YOU have to manually go from the 3 settings to change the temp if it gets too cold. It does NOT change the flame height like a bypass gas control. Doug
dougrainer 03/03/21 07:16am Tech Issues
RE: 2001 Holiday Rambler

If you have the Ford Chassis. The Sony is installed and the speaker/power wires are connected direct to the HR wiring harness. There is NO Ford Harness. So, the existing Sony HAS its multi wire plug on the back of the radio. So, IF the new radio has an optional adapter harness to connect TO the Sony existing plug, then you can plug and play. I have 42 years working on Motorhomes. I have never seen such a plug. I have to trace out each speaker wire and connect to the new Radio wire harness. Exception is if you have a Ford C Chassis. It will have the Ford OEM harness. Doug
dougrainer 03/03/21 07:08am Class A Motorhomes
RE: Atwood 8500 series furnace bench test on high limit switch

Good job on the furnace! Never heard of those called "square drive" before. Weird! :) Looking it up, found this explanation; https://www.popularwoodworking.com/questions-and-answers/q-a-square-drive-vs-phillips-head-screws/ Are you serious? Square Drives/screws have been utilized in the RV industry for over 50 years. The actual Square drive bit I use for that limit switch is No 1. Doug PS, in a pinch you can use a small needlenose Vise Grip pliers. Hard to do, but they usually grip the outer round part of the screw.
dougrainer 03/02/21 01:01pm Tech Issues
RE: Help hooking up power to back up camera

1. The original Back up camera system has NO Reverse wire connection at the REAR of the motorhome. The reverse is activated at the front Dash area to the original dash monitor and when the reverse transmission Hyd switch is engaged the wire is sent to the Dash Monitor harness and the Dash Monitor then sends the activation/power thru the multiwire harness connected to the rear camera. 2. The 3 wires you mention. Are these at the rear Tailight/Reverse light lamp assbly? If so, then the Yellow is usually the Reverse Pos wire. The Green would be running lights and the white ground. 3. The SAFE way to test is what I do. I have someone at the drivers seat with the Air brake engaged and then run the engine and have them shift to reverse WITH THEIR FOOT ON THE BRAKE PEDAL. Doug
dougrainer 03/02/21 12:57pm Class A Motorhomes
RE: Atwood 8500 series furnace bench test on high limit switch

The OEM's have engineered designs for ductwork. BUT! The actual install is up to production people that are NOT told the specs and why the install has to be to the engineering prints. That is why over the years I have seen horrible installs on Roof AC ducting and furnace floor ducting. But, until the customer complains I do not dive into the ducting to see the problems. One exception was over 10 years ago when we sold a certain brand if inexpensive Trailers. ALL the roof AC ducting was not installed and sealed especially at the AC control box plenum. HUGE gaps. It was so bad(customer complaints under warranty), that we in service told our PDI dept to repair every AC ducting of that brand during PDI, which the OEM paid for under warranty. AS I stated, most customers never realize that the furnace is LIMITING during operation and if they hear the burner kick off and on, they assume that is normal. Doug
dougrainer 03/02/21 09:33am Tech Issues
RE: Any Xantrex Freedom XC 2000 Inverter/Charger Users?

If you want a 2000 watt Inverter/Charger. This is very good for an RV. It supports Lithium Battery charging. Doug
dougrainer 03/02/21 09:23am Tech Issues
RE: Atwood 8500 series furnace bench test on high limit switch

That switch should never need to open. If it does there is not enough air moving through/over the furnace. They open and close all the time. OEM furnace ductwork installs NEVER match the correct volume of air required to run the furnace without the Limit occasionally tripping. Also the RV'er will block off some floor ducts to get more heat or air to some areas of the RV. That will also cause the Limit system to trip. YES, it would be nice if the Ductwork was installed to meet the Minimum requirements to prevent Limit switch tripping. I can ALWAYS make both Furnace and Roof AC ductwork many times more efficient, but unless under warranty, the customer will not want to pay for a check out and making it to best operation. Rarely do I get a complaint about Ductwork under warranty. They just figure that is the way it is. Doug
dougrainer 03/01/21 09:20am Tech Issues
RE: Replacement RV Slide Out Topper

The toppers on my Monaco coach all had a scalloped flap that hung down on the front edge when extended so the length of the topper fabric was important. The length has nothing to do with a scalloped flap. The overhang flap(scalloped) is designed in the older slide toppers. Unless paid for extra or even offered, the Flap will have to be built into the replacement. If you desire that overhang flap, you need to ask if the replacement can have that flap. Doug
dougrainer 03/01/21 09:11am Class A Motorhomes
RE: Generator breaker keeps shutting off immediately

Update: Replaced brushes and springs. Shined the rings. That brought my stationary ohm reading into tolerance on the 9/10 pins at 25 ohms. Problem is during spinning the ohms flucuate from 0.00 to OL at those same pins. I think I have a short in the rotor. Hope not, expensive fix. You CAN buy a re-wound Onan Armature for a lot less than new. Doug
dougrainer 02/28/21 06:35pm Tech Issues
RE: Atwood 8500 series furnace bench test on high limit switch

Thank you all for responding. I agree, if you take the blower apart enough to get to the high temp. switch, then replace it. I do have a spare high limit switch, and I am in the process of replacing it. As FYI, cost for a Dometic PN 37022, the current day replacement, was $21.04 with tax and shipping. The prices are all over the map, just make sure it is an OEM supplied one. From Doug's comments, it appears he has seen these switches fail before as they get older. Not sure if they fail open, stay stuck closed, how many years it takes, or run hours of the furnace to get to that point. It would be good to know. On taking the time to test the furnace, if this was a charged job, time is money and the time spent with extra testing is hard to absorb or pass on to a customer. In my case, time is something under my control and cost is secondary, there is no waste. The knowledge learned from the testing, was worth it for me. I'm retired and restore water infected campers. I now know more now then I did before, and I know better for the next time. Thanks again, grateful for all the responses/help. John They are normally CLOSED. They usually fail OPEN. The Bi Metal of the switch gets "weak" over years of tripping and resetting. That is why if rebuilding an older furnace you replace the switches. Doug
dougrainer 02/28/21 06:33pm Tech Issues
RE: Mirror replacement issue. Need some assistance Please!

Yes, the switch reverses the polarity of the motor/s. Doug
dougrainer 02/28/21 06:26pm Class A Motorhomes
RE: Atwood 8500 series furnace bench test on high limit switch

Why not just replace it with a new one as long as you're already in there? For the $15 or so they sell for, I wouldn't waste my time on the old one. Save it for a spare... Bingo. You are wasting a lot of your time on a 16 year furnace testing a Limit switch that usually fails after years of service. Just install a new one. To get it to trip, block off the hot air ductwork holes. It should take less than 10 minutes for the Heat Chamber to reach over 200 degrees. Doug
dougrainer 02/27/21 02:24pm Tech Issues
RE: 2005 IOTA power converter

GSM battery link. Just 1 of many GSM batteries. The OP stated GSM, NOT AGM. One thing I have learned over the years is to not just assume you are smarter than somebody else and try to impart your perceived superior intellect on others. Maybe the OP meant AGM NOT GSM. I doubt he meant GSM, but just asking "GSM?" was the correct NON RUDE response. Doug https://www.alibaba.com/product-detail/gsm-alarm-system-12v-7ah-battery_729240786.html?spm=a2700.7724857.normal_offer.d_image.264d3dc1hF2Evn
dougrainer 02/26/21 01:25pm Tech Issues
RE: 170VAC coming from my Onan generator

Doubt whether transfer switch was damaged. I would be checking the converter and other electronic devices. Bingo. IF the 170 made it thru the ATS, you WILL have fried components inside the RV. Since it appears either the ATS failed to close for the Genset or the Genset breaker tripped before getting to the ATS, either way, that protected you from interior component failure. Doug
dougrainer 02/25/21 07:07am Tech Issues
RE: Fulltime 5er to MH - Help?

As Ivy stated, Diesel motorhomes are geared towards 2 people. Sounds crazy, but even 45 tag axles also. So, when looking at Diesels remember that sleeping will be for you and the wife. The kids will have to use the couches that fold out. Most Diesels, the couches(usually 2 full size beds) that fold out have air mattresses, so it will be comfortable for the kids. Downside is, once the couches are folded out, moving around is not that easy. Doug
dougrainer 02/23/21 05:27pm Class A Motorhomes
RE: 170VAC coming from my Onan generator

I never had brushes or rings cause an EXCESS of voltage. Usually low or no voltage. I HAVE had Voltage regulators fail on those older Onan's. Doug PS. the ONLY thing that ever caused excess voltage was the Running speed of the genset. Never had the Voltage regulator cause extreme high voltage. Also, if your model Onan fails to produce 120, the genset shuts down.
dougrainer 02/23/21 12:30pm Tech Issues
RE: Fulltime 5er to MH - Help?

MAX tow capacity on most Diesel pushers is 10,000 lbs. With your requirements for what you intend to put in that stacker, I will bet you be way over 10,000 lbs. The capacity is determined in part to the HITCH capacity on the Rear of the Motorhome. You CAN beef up the motorhome hitch capacity, but make sure you get a certified welder and somebody that knows how to do it. Also, you will probably be way over the complete cargo carrying capacity since you have a full family and will probably fill up the lower storage bins and inside. You really need to measure your existing 5th wheel FULL and then remove the personal items and see how much your total payload is. Diesel Motorhomes do NOT have unlimited cargo capacity, tho some think they do. Doug
dougrainer 02/23/21 12:25pm Class A Motorhomes
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