Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
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 01-09-2011, 05:55 PM   #15
Senior Member
Pusherman's Avatar
Join Date: Oct 2006
Location: Rochester NY
Posts: 2,358
Originally Posted by dieselclacker View Post
Dave, the reason for recycling the pre-heat system for the engine is to re-set it to cycle on again. Most if not all pre-heat system have a timed cycle, (when the light goes off, engage the starter). By recycling it a couple of times without engaging the starter, warmer air is produced for the engine to start on.

On my CAT C7 I can actually hear the grid heater come on when I cycle the ignition key. And yes, it comes on more than once if you cycle the key. Just watch your battery gauge.

Dirk - When I owned my Cummins 5.9 ISB, it too would cycle more than once even after the engine started. Again, watch your battery gauge.

On edit, yes, there is a temperature sensor in the system which if the ambient temperature is warm outside precludes the grid heater from coming on. Not needed.

'07 Winnebago Journey 34H - CAT C7, Koni's, MCU's, SS Bell Crank, Safe-T-Plus
'07 HHR Toad, SMI AFO, Blue OX
Pusherman 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 01-09-2011, 06:13 PM   #16
Community Administrator
Route 66's Avatar

Newmar Owners Club
Retired Fire Service RVer's
Spartan Chassis
Join Date: May 2000
Location: Newark, DE
Posts: 23,667
I have found no need to recycle the preheater on my Cummins. Once the Wait To Start light goes out, it always starts right up.

Adios, Dirk - '84 Real Lite Truck Camper, '86 Wilderness Cimarron TT, previously 4 years as a fulltimer in a '07 DSDP

No trees were harmed in the transmission of this message, but millions of electrons were temporarily inconvenienced.

Route 66 is online now   Reply With Quote

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
He's Back---A/C cycling 10 sec SPA48 Monaco Owner's Forum 3 08-07-2010 04:11 PM
Generator cycling on and off (sporadic electricity) or maybe a ATS question? jumper bob RV Systems & Appliances 6 05-17-2010 09:38 PM
Air conditioner compressor keeps cycling off - why? Bob&AnnaMari RV Systems & Appliances 12 05-13-2009 10:37 AM
Norcold Fridge compressor cycling frequently? RanchoVectra Winnebago Industries Owner's Forum 8 06-26-2007 12:16 AM
Basement air cycling problems wagonmaster2 Winnebago Industries Owner's Forum 2 07-20-2005 10:07 AM

» Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 07:31 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.