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Open Roads Forum  >  Class A Motorhomes

 > Dash Heat isn't hot enough

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Kenney B

Redding Calif.

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Posted: 02/18/12 09:06am Link  |  Print  |  Notify Moderator

2007 Diesel Fleetwood Expedition. On a trip this week we froze as we drove. Our dash heat just didn't seem to keep us warm. Any ideas?I checked the engine temp, its 190 & heat out of vents is 100. I thought about insulating the pipes, but can't get to them. Is this common with pushers?

grandpalarry

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Posted: 02/18/12 09:16am Link  |  Print  |  Notify Moderator

I have a gasser class A and I thought that the cab heater was trying to heat the whole 35 feet, so I got a blanket and as a temp. fix taped it to the celing with (what else)Duct tape. that way the heater only had to heat about the size of a car, worked!


I don’t need anger management-I just need people to stop pissing me off.
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2006 Holiday Rambler DP

robatthelake

Vancouver Island

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Posted: 02/18/12 09:19am Link  |  Print  |  Notify Moderator

Check the Evans Tempcon Electronic Water Control Valve . Chances are that it has stopped the flow of Coolant through Your Heater.
They are expensive to replace, so I installed a Bypass with a simple Brass On Off Valve.
In the Winter ,I keep it Fully open. In Summer Closed!
It isn't as convenient but does the job.
I leave the original "Electronic" Valve connected so as not to confuse the Computer or the DW!


Rob & Jean
98 Dutch Star Diesel Pusher ..92 Tracker 4X2


StevenH

Michigan

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Posted: 02/18/12 09:40am Link  |  Print  |  Notify Moderator

A lot of people run the RV furnace for additional heat.

Same issue in the summer the dash AC is not adequate to cool the whole coach so we run the generator and coach AC units.

Steve


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Krusty

Calgary, Alberta,Canada

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Posted: 02/18/12 09:52am Link  |  Print  |  Notify Moderator

Definitely a problem. Temp measured at the dash vent is usually 140-160 degrees. Measure the temperature of both heater hoses. They should both be too hot to hold onto for very long, and similar in temerature. If one is much warmer, probably a plugged up heater core.

If they are both hot, the problem is in the heater, possibly a temp blend door sticking partially open.


Krusty
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Ed C

Cape Cod, MA

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Posted: 02/18/12 10:11am Link  |  Print  |  Notify Moderator

We found that our gassers kept the whole coach warm (Winnebagos with motoraide) but our diesel is not nearly as warm.


Ed/Jeanie & Slade the GSD
2010 Journey 40L/ Sierra Crew

daveshan

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Posted: 02/18/12 10:55am Link  |  Print  |  Notify Moderator

DPs have very long hoses between the heat source (engine) and the heat exchanger in the dash, most rigs hoses are uninsulated causing quite a bit of heat loss. Water that starts out at 170ºF can be way lower temp by the time it gets to the front, in addition the coil in the dash isn't 100% effective either leaving the air coming out temperate at best.

I ran the furnace bringing the rig home over Wolf Creek Pass last fall after trying unsuccessfully to stay warm with the dash heat. Then did research and found the above explanation. Other issues can add to the issue, blend doors and cold air leaks but many DPs just have poor heat.

One + for a front engine rig I guess.


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'05 Lance 845
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Upgrades include: StabilLoads, Air Bags & Timbrens,Swaybars

Usually towing an '01 Wrangler, lifted/locked on 35"s or a mildly built '98 Cherokee on 33"s (only one locker)


2inAlabama

Huntsville, AL

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Posted: 02/18/12 12:08pm Link  |  Print  |  Notify Moderator

We have the same problem in our coach. We are going to experiment with some type of thermal curtain that we hang from the ceiling just behind the cockpit.


Just DH & DW


hottubkid

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Posted: 02/18/12 12:46pm Link  |  Print  |  Notify Moderator

I put up a curtain rod right behind the driver and hung a thin curtain on it floor to ceiling and all the way accross. We close it and are warm


hottubkid60193@yahoo.com
2004 SOUTHWIND 36E Tow 2003 CRV


J-Rooster

Port Orchard, Wa. / Lake Havasu City, Az.

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Posted: 02/18/12 12:47pm Link  |  Print  |  Notify Moderator

StevenH wrote:

A lot of people run the RV furnace for additional heat.

Same issue in the summer the dash AC is not adequate to cool the whole coach so we run the generator and coach AC units.

Steve
X-2, or when I drove over the road (retired now) we put a diaper (cover) over the outside of the radiator.

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