Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Fleetwood Products Owner's Forum
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 12-16-2017, 10:48 AM   #1
Senior Member
Join Date: Jul 2013
Posts: 160
Dash heater

The dash heater blow warm/cold air .
any thing to check ?
There is no valve control.
If I move the temperature selector I can heard that a door open and close .
I scanned the engine temperature and it runs at 190 degree .
I think the thermostat is fine.

thanks in advance...

mrwrench is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 12-16-2017, 01:50 PM   #2
Junior Member
DaNash's Avatar
Holiday Rambler Owners Club
Join Date: Jan 2014
Location: Canada
Posts: 13
There is almost always a heater by pass valve in place. You do not want the A/C to fight against the heater. Unless the air flow through the HVAC box by-passes the heater core entirely. But with the caliber of todays 'mechanics' anything is possable.

That said...

If in fact there is no valve, the engine is 190 and the blower is on high, but your still experiencing cold or moderately warm air. The problem is low flow, either liquid or air. Your hoses may be full of all kinds of eewey gooey junk or the heater core itself will be stopped up with an excessive amount of dust. I once found a mouse nest under the turbo of a 6L PStroke. It's possable you also may have an unwanted guest in your vents.

Good luck and stay warm.

Canadian Voluntourist
'05 HR Navigator 43PBQ
Life's short, play naked.
DaNash is offline   Reply With Quote
Old 12-16-2017, 04:39 PM   #3
Senior Member
Join Date: Dec 2009
Location: Reno, NV
Posts: 159
Follow your heater hoses and look for valve that shuts off the water so it can't circulate. It's probably stuck closed or restricted. If it is? you can force it open and closed a few times to break it loose. You can also touch your hand on the heater hose when engine is warm to see if its hot or not. If you have a pusher? Mine doesn't normally get hot until about 1200 rpm. Idling will not push the hot antifreeze to the front efficiently. Need to know Model and engine to give better advice. good luck
gatorv is offline   Reply With Quote
Old 12-16-2017, 06:35 PM   #4
Senior Member
Ford Super Duty Owner
Join Date: Mar 2009
Posts: 446
Your HVAC is from Denso. NO water valve and NO vacuum controls. All electric servo motors. You system uses a blend door to control temperature. It's not like HR or some other brands.
HVAC Systems | DENSO Heavy Duty

RLS7201 is offline   Reply With Quote
Old 12-17-2017, 08:54 AM   #5
Senior Member
Join Date: Jul 2013
Posts: 160
yes it is Denso ,I can't find the blend door.
mrwrench is offline   Reply With Quote
Old 01-05-2018, 01:05 PM   #6
Senior Member
Join Date: Jul 2013
Posts: 160
it should be the blend door , the engine , the heater core are hot ..

mrwrench is offline   Reply With Quote

dash, heat, heater

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Heater Problems In Dash Heater Mbsutton Winnebago Industries Owner's Forum 3 10-18-2014 09:27 PM
Heater hose for Dash Heater ruptured Melorene Alpine Coach Owner's Forum 7 06-19-2013 06:13 AM
Anyone change the tv location from below the dash to above the dash??? Born2RV MH-General Discussions & Problems 11 03-14-2010 02:53 PM
SunTek Dash Cover Discoloration of Dash vicsryd MH-General Discussions & Problems 19 08-26-2006 01:38 PM
Red Oil Pressure Signal on dash is a GM Problem in Dash Unit BEBOP Workhorse and Chevrolet Chassis Motorhome Forum 11 07-28-2005 06:47 PM

» Virginia Campgrounds

Reviews provided by

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 04:19 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.