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11-06-2011, 09:22 AM
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#1
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Junior Member
Join Date: Mar 2009
Posts: 10
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2005 Dutch Star DP.dash temp controle only allows hot air. Fan control works and control for vents, and defrost settings work. Turning temp control has no effect on temp,only hot air. Are there any fuses for this control? Have called Newmar,they were unable to help.
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11-06-2011, 10:01 AM
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#2
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Senior Member
Freightliner Owners Club
Join Date: Aug 2005
Location: Chicagoland
Posts: 200
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This is not a fuse problem. It sounds like the EVANS temperature control valve is stuck. You can see this valve when you open the front hood,its on the top left. (passenger side). You can GOOGLE "Evans Tempcon" for more info.
Siggy
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Siggy & Ursula.
2011 Newmar DSDP 4020 (no T,pre emission),
FTL XCR ,ISL 400,05 Saturn AWD,BrakeBuddy
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11-06-2011, 01:20 PM
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#3
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Member
Join Date: Jan 2008
Location: kingston, oklahoma
Posts: 34
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Sounds like the Evans Temp Control alright. Temp fix for mine anyway was turn temp control to full hot with engine idle for about a minute, then go to cold. That worked on mine anyway. Its has worked ok since. Keith 2005 Dutch Star DSDP 3815.
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DSDP 3815--spartan chassis--370 cummings eng--2008 tahoe toad .. M & G break system--roadmaster sterlng tow bar-- 
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11-06-2011, 02:35 PM
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#4
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Senior Member
Join Date: Sep 2011
Posts: 982
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Quote:
Originally Posted by siggyd
... You can GOOGLE "Evans Tempcon" for more info.
Siggy
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First search these very forums, LOTS of prior posts on this and alternative fixes.
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11-06-2011, 05:25 PM
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#5
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Senior Member
Newmar Owners Club
Join Date: Apr 2010
Posts: 453
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You should be able to remove the motor that drives the valve on your unit, three or four screws. Then manually rotate the plastic sleeve. On my Sietz (Evans) Clockwise is heat, CCW is no heat. The replacement valve and wiring harness is about $123.00 from a dealer.
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11-07-2011, 06:45 AM
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#6
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Senior Member
Join Date: Nov 2010
Posts: 150
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Quote:
Originally Posted by gard1941
2005 Dutch Star DP.dash temp controle only allows hot air. Fan control works and control for vents, and defrost settings work. Turning temp control has no effect on temp,only hot air. Are there any fuses for this control? Have called Newmar,they were unable to help.
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Does the A/C come one if you switch? Mine would only do heat, not A/C. Bought a new Evans valve and had it installed, now switching between heat and A/C is no problem. If you issue is that when it is on heat it is only one temperature and changing the setting doesn't seem to change the temp, mine does that also. It was that way before the valve went out and with the new one.
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Mike
2005 Kountry Star 3907, ISC330, Spartan chassis
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11-07-2011, 07:04 AM
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#7
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Community Moderator
Nor'easters Club Newmar Owners Club Workhorse Chassis Owner
Join Date: Oct 2004
Location: Salisbury,Ma. 01952
Posts: 13,607
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There is all types of information in Quick Tips on Evans Controls, plus much more.
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