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 > Your search for posts made by 'dougrainer' found 1491 matches.

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RE: Suburban sw6pe

Open the POP OFF valve and make sure your water heater has water in it. You may have the bypass valves in the wrong position, your 5 minutes is about the time it takes for an empty water heater to overheat and trip the tstat if no water in it. Doug
dougrainer 08/28/14 12:21pm Tech Issues
RE: 2005 Atwood Furnace

Even tho you replaced the hi limit switch, I would test to make sure the Hi limit has NOT tripped after that 14 minutes. Doug
dougrainer 08/28/14 12:18pm Tech Issues
RE: ac froze up when fan on low speed.

For what it's worth .. my Class C is over 20 years old ... has wall thermostat that controls both heater and AC .. and the Coleman AC unit did not come with freezer sensor. That does not mean it was never offered or installed. Years ago, a LOT of OEM's did not install the freeze sensor because the production workers did not know what they were. They threw them away. Doug
dougrainer 08/28/14 06:04am Tech Issues
RE: No Leveling System in my Class A

Leveling systems are NOT required. But, they make life easier if you have one. IF you have a slide out, you will want a leveling system installed. Motorhomes will lean to the extended slide out side without a leveling system. Most Class A's with slide outs built in the last 10 years have leveling systems. The only reason a Class A would not have one is, it does not have a slide out or the OEM was trying to save money and build a unit with a lower price point to compete with other OEM's. Doug PS, this is one item that will add to your re-sell value down the road.
dougrainer 08/28/14 05:59am Class A Motorhomes
RE: Dreaded Norcold NO CO error - Looking for help diagnosing

OP, if I understand your post above, it's working with the refer section at 37 degrees??? Unfortunately you have decreased the cooling capacity of your unit with a partial blockage that cannot be fixed. In warm weather you may have to add another fan to help it to cool enough. Good luck and keep us posted. I'm not clear what you mean. What I did was use the diagnostics to display the fin temperature. The FIN temp shows your refer is NOT cooling correctly. The FIN temp will be 10 degrees COLDER than the refer. So, if your fin temp was 26 degrees the refer would be cooling to 36 degrees. Your refer is only cooling to 47 degrees. At this point you need to either go to the BOS mode or hot wire the 2 120 elements direct to 120 and make sure the cooling fans are running during the 24 hour test. If after 24 hours the refer is not at or below 36 degrees, your cooling unit is bad. You want to put a cup of water in the refer and measure the water temp,NOT the air temp after 24 hours. Doug
dougrainer 08/27/14 02:24pm Class A Motorhomes
RE: ac froze up when fan on low speed.

I will not belabor to argue the point further, but no.... 20 years ago a t stat on the wall was the heater, and did not control the a/c But, the point is, there are VERY FEW 20 year old RV's(towables) still in service. MOST of the complaints and calls for help on these forums are RV's no more than 15 years old. About 20 years ago, is when they started putting wall tstats in motorhomes. Doug
dougrainer 08/27/14 02:05pm Tech Issues
RE: 2002 Monaco

With the Diesel burner ON, you WILL have unlimited Hot Water. Doug
dougrainer 08/27/14 01:57pm Class A Motorhomes
RE: ac froze up when fan on low speed.

Very few RV AC units have roof mounted controls. IF you have roof mounted controls, you MUST leave it on Hi Cool in high ambient and hi humidity conditions to prevent freeze up. MOST RV units have a wall tstat and IF they have a wall tstat, they have a freeze sensor mounted in the evap coil. If installed correctly and functioning, the AC can NEVER freeze up from any parameter. So, if the OP has a wall tstat, he needs to check and verify the freeze sensor is indeed in the evap coil. Doug i would say the Majority of Rv's ever MGF and on the road have the controls on the A/C units yes most new middle and high end RV's of "CURRENT" mfg have t-stats on the wall for a/c and heat don't know when the change over to wall mount t-stat became predominate in sales of new rv's, but, i don't think the are predominate in totality only in new mfg for the past few years, maybe the past ten, maybe less Well, lets look at EXPERIANCE. I have 35 years as an RV Tech, we sell Pop-ups to 500K motorhomes. We service ALL kinds. My statement is dead on. Pop ups will have roof mounted controls. Bare Bones small Trailers will have roof mounted controls. These 2 are in the extreme minority of sales. So, as I stated, the majority of RV's will have wall mounted tstats. Doug
dougrainer 08/27/14 06:05am Tech Issues
RE: E4 Error Code on Dometic Thermostat

There is no real reset on the Dometic Single zone tstat. Once you correct the "error", the error code goes away. Doug
dougrainer 08/27/14 06:01am Tech Issues
RE: ac froze up when fan on low speed.

Isn't a properly functioning expansion valve supposed to prevent freezing, regardless of fan speed? NO, is the simple answer. Expansion valves are what help produce the cold, NOT regulate it. There is no "expansion" Valve on a RV roof top AC unit. The use a Capillary tube system. Even on RV Dash AC systems with a Expansion valve, there is a mechanical cold tstat that shuts the compressor off if the evaporator starts to freeze up. Doug
dougrainer 08/26/14 06:16pm Tech Issues
RE: dometic duo therm a/c heat pump

"ddstoval"......Try PPL Parts. They have parts for the Dometics and different models. They will also help you match up to what you have. You might also think about bumping up to a 15K if yours is a 13.5K predominately used in your era of coach. You didn't say what was wrong with yours. Mine was only blowing hot air. They commonly have reversing valves that are easily replaceable that go bad. For about $50-$60 you can buy many of the common parts (start capacitor, reversing valve) from PPL to tune up the old unit. Reversing valves are NOT an available part from Dometic. The ELECTRIC COIL that engages the reversing valve is the only available part. Doug
dougrainer 08/26/14 06:10pm Class A Motorhomes
RE: 50 Amp service with 30 Amp trailer

You really need to learn power managment. AC 18 amps running, refer another 6 or 7 hair dryer puts you into overload. Especially ill bet you also had the water heaternon electricity too. Switch refer and water heater to gas and be sure to turn off the AC when DW wants to use the hair dryer. Then youll be fine without any adapters CORRECT amp draws 1. Roof AC no more than 15 amps at 95 degrees(more likely 13 to 14 amps Hi Cool) 2. refer 2.5 amps(2 door) to 3.4 amps(4 door) 3. Water heater 10 to 11 amps Using a 50 amp plug and adapting down to 30 amp will cause NO PROBLEMS at all. Your RV's 30 amp main breaker still protects the RV and interior 120 appliances. You will only be using 1 leg of the 50 amp (which means the supply is a 50 amp breaker to your RV). Doug
dougrainer 08/26/14 02:47pm Tech Issues
RE: Dreaded Norcold NO CO error - Looking for help diagnosing

I know you cannot fix a blockage BUT you can recombine the water and ammonia that get separated when you run one out of level by vibrating the rear coils. Any thoughts on how to vibrate the coils? And where specifically on the coils should I be vibrating them? IF this was a valid repair, Norcold and Dometic would have us doing that instead of replacing cooling units when under warranty. Like I stated, Ivylog believes his theory(which is his right), but there is no validity to it. Doug
dougrainer 08/26/14 02:42pm Class A Motorhomes
RE: Dreaded Norcold NO CO error - Looking for help diagnosing

I know you cannot fix a blockage BUT you can recombine the water and ammonia that get separated when you run one out of level by vibrating the rear coils. Just turn the refer OFF for 24 hours, then restart. There is no such thing as "combining" the Water and Ammonia. Running OFF Level causes the blockage, not causing the Water and Ammonia to separate. Ivylog, please state what and where you have come to this conclusion and point us to that source. Doug
dougrainer 08/26/14 02:40pm Class A Motorhomes
RE: shore power in campgrounds

i was at a state c g in Tenn this week and the 30 amp service didnt putoff the amps i needed my ice maker would not kick the compresser inbut when getting home it worked fine question is was the c g power tower not putting out full amps You have stated it wrong. It is NOT "amps put out". It is line voltage that was your problem. Your CG did not have the required voltage to run everything on 30 amp service. Your appliances cannot see or measure amps. Doug
dougrainer 08/26/14 09:14am Tech Issues
RE: Problems Dometic Elite dual fuel refrigerator RM7732

Your control module is current design. Doug What do you think of the thermocouple? REPLACE IT. DOUG
dougrainer 08/26/14 09:10am Class A Motorhomes
RE: ac froze up when fan on low speed.

Doug, we have had a couple of trailers with ceiling mounted controls and freezestats mounted on them...Coleman units. Ken There is a "freeze kit" that RVP will supply(sell), but is NOT part of the standard roof mount control Kit, unless the roof mount kit is just mechanical knob. These units had mechanical controls in the roof? Doug
dougrainer 08/26/14 06:16am Tech Issues
RE: Low propane at furnace

Static w/c should be 11.5. You should NOT see a drop below 11 inches when an appliance is running. 6 inches at the furnace is strange. Regardless, IF you have to adjust a LP regulator that has been in use for years, it is BEST to replace the LP regulator. This is because a Regulator can get a weak spring/diaphragm and you can never get the W/C to stay on target as it will hunt and surge up and down. Doug
dougrainer 08/26/14 06:13am Tech Issues
RE: Problems Dometic Elite dual fuel refrigerator RM7732

Your control module is current design. Doug
dougrainer 08/26/14 06:08am Class A Motorhomes
RE: ac froze up when fan on low speed.

Low refrigerant can also cause the coils to freeze up. Actually this is the least likely cause of an evaporator coil icing. The compressor on these small units are what is know as a positive displacement or PD compressor. This means that it pumps a relatively constant volume of refrigerant on each revolution of the shaft. With the fan on low speed, there is a lesser amount of refrigerant vaporized in the evaporator. The compressor keeps trying to pump the same volume, so the pressure drops in the evaporator to the point that the specific volume (this is the reciprocal of the density of the vapor) of the refrigerant increases to the point that the volume will satisfy the compressor. As the pressure in the coil drops, the temperature drops due to the properties of the refrigerant. You let the pressure drop to the point that the coil temperature drops below the freeze point of water and the coil is iced or frozen. I wish that the manufacturers would do away with the low speed on the RV units. Ken Very few RV AC units have roof mounted controls. IF you have roof mounted controls, you MUST leave it on Hi Cool in high ambient and hi humidity conditions to prevent freeze up. MOST RV units have a wall tstat and IF they have a wall tstat, they have a freeze sensor mounted in the evap coil. If installed correctly and functioning, the AC can NEVER freeze up from any parameter. So, if the OP has a wall tstat, he needs to check and verify the freeze sensor is indeed in the evap coil. Doug
dougrainer 08/25/14 02:24pm Tech Issues
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