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Topic: Dash heat (Read 978 times) previous topic - next topic

Dash heat

if your dash heat is somewhat lacking in output, and you have a motor aide water heater, you may have a valve that you need to close to get maximum heat out of dash system.  On my ORED the valve was accessable thru a small porthole in the cabinet below the sink. Tag indicated to "close valve for max dash heat".  As near as I can tell, my heater appears to be original, service records showed It had the gas valve replaced.
Old Phart Phred, EIEIO
89 GV ored 36' #3405 300 hp cat 3208 ATAAC side radiator, mountain tamer exhaust brake

Re: Dash heat

Reply #1 –
Yes, a common (and excellent) feature on Fortravels all across the models and years.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Dash heat

Reply #2 –
And you need to open this valve if you are changing your engine coolant along with having the dash heat control all the way up.  I too have the original water heater, keeping an eye on it though.
97 U295 40, Build #5040, 6C8.3 325 HP
Oregon Continuous Traveler
Samsung Residential #RF20HFENBSR,
Xantrex SW2012, (3)AGM8D Hse, (2)AGM Grp24 Eng, Victron BMV-712, 1800w Solar 4 LG & 2 Sunpower
Extreme Full Body Pt w/hdlmps, new furn/floor, 4 down Lexus 2004 GX470 AWD curb weight 4,740 lbs
Prev: 1990 Barth, 10L 300 2 yrs; 91&92 Monaco Signature, 10 yrs, 10L C 300 &  6C8.3 300; 1997 ForeT 6C8.3 325 since May 2017.  Employed by Guaranty RV 14+ yrs.  Former VW New Car Dlr/Service Dlr, Sales Mgr, Rv Sales, and Service Adviser from 1968-2017
"Don't criticize what you can't understand" Bob Dylan

Re: Dash heat

Reply #3 –
Yes, when changing coolant, both motor-aid valve and dash heater valve need to open.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Dash heat

Reply #4 –
There may also be a additional pump that will push more heated water forward, on my U300 I have a dash switch that says aux pump. on the driver's side in the engine compartment on the frame this pump is mounted and takes water out of the block and pushes water through the system.
Andy & Eileen
MONTROSE COLORADO
1992 U300  40' 6V92 TA
2016 4 Runner
1998 Jeep Grand cherokee

1998 Jeep Grand Cherokee) Build # 4135 Skp# 122921

Re: Dash heat

Reply #5 –
This is it. ^.^d
Andy & Eileen
MONTROSE COLORADO
1992 U300  40' 6V92 TA
2016 4 Runner
1998 Jeep Grand cherokee

1998 Jeep Grand Cherokee) Build # 4135 Skp# 122921

Re: Dash heat

Reply #6 –
Quote from: Andy 2 –
This is it. ^.^d

My dash heat aux pump was DOA when I bought the coach in 2012.  I never really needed it in this climate here but wanted to have it working when traveling in cold country.  I replaced it with a Bergstrum 12v Inlet Booster Pump Assy - Bluebird 10034148 bergstrum 12v inlet booster pump assy | eBay
Fortunately it came with mounting bracket. I had to drill out the holes to mount it but it fit in there just like the original.  Lost some coolant but replaced it.  You're right Andy, it makes a big difference!.

Jerry
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Jerry and Cindy Maddux
1993 U300/36WTBI DD6v92TA
build 4271  "Miss Lou"
1995 suzuki sidekick 4x4 toad
Gulfport, Ms

"Pride of Ownership"