RV News RVBusiness 2021 Top 10 RVs of the Year, plus 56 additional debuts and must-see units → ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Tiffin 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 12-02-2020, 10:33 AM   #1
Senior Member
TXwannabe's Avatar
Tiffin Owners Club
Join Date: Sep 2014
Location: Currently In Port Aransas, TX
Posts: 102
Question Engine Block Heater Question

05 Phaeton, C-7, Freightliner chassis. As we traveled this past week from AZ to TX, we had multiple nights on the road of low to mid 20's temps. Although I probably haven't used this in 2 years, had the thought to use the engine block heater for easier startup each morning. Plugged the cord labeled 'engine block heater" into the outlet in my electric bay, went to the rocker switch on the panel adjacent to the driver's seat, turned it on, but the indicator light didn't light up.
Used my meter to determine I had power to the outlet. How can I determine if the block heater is actually working or not?
2005 Tiffin Phaeton 40QDH/2012 CR-V EX-L Toad
Invisibrake/Roadmaster Falcon All-Terrain Tow Bar
TXwannabe 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 12-02-2020, 11:29 AM   #2
Junior Member
Join Date: Jun 2019
Posts: 2
You'll know by checking engine temp on the FL digital display. You'll probably see a temp range between 80-125 degrees depending on how long you leave it plugged in. Obviously you need to be plugged in or have the gen on for 110v power to be supplied to the outlet.
exclus is offline   Reply With Quote
Old 12-02-2020, 11:34 AM   #3
Senior Member
Skip426's Avatar

Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 21,676
If it's quiet enough and you're close to the engine , you'll hear a hiss from the heater after it's been powered up for a couple of mins.
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
Skip426 is offline   Reply With Quote
Old 12-02-2020, 05:43 PM   #4
Senior Member
Join Date: Apr 2015
Location: Rogers, AR
Posts: 1,376
If you have any type of control panel that shows the current being drawn on each leg, just shut about everything down so there is very little current being drawn on either leg. Then note the amounts of current, turn on the block heater and see if one leg jumps up about 10A in current, then shut it off to see if current goes away. If it does, you have a block heater, if there's no change, you don't have one.

That's how I found out by block heater was bad from the factory.

You could also check for electrical continuity at the plug, but the wire from the plug to the heater could be bad. Then you could go to the engine block heater and check it there.
2019 Fleetwood Discovery LXE 40M w/2012 CRV toad
alank is offline   Reply With Quote
Old 12-02-2020, 05:50 PM   #5
Senior Member
Join Date: Oct 2014
Posts: 1,508
And, another method is to just put your hand on the block after the block heater has been on for an hour or two.
Brett Wolfe
Ex: 2003 Alpine 38FDDS. Ex: 1997 Safari Sahara. Ex: 1993 Foretravel U240
wolfe10 is online now   Reply With Quote
Old 12-02-2020, 06:20 PM   #6
Senior Member
FL420's Avatar
Join Date: Jan 2018
Posts: 2,173
I use my ScanGaugeD to check my coolant temperature in the morning to see how cold it got the night before. I suppose I could use it to check to see if the block heater was doing its job.
I never felt the need to do it as my Cummins starts easily in the teens and twenties without using the block heater.
2005 Monaco Knight 40PLQ; Cummins 8.3L ISC330, Pacbrake, Allison 3000, Roadmaster RR8R, ScanGauge D, 2004 Kawasaki Vulcan VN750(Geezer Glide) on a Versahaul carrier pulling a 2013 Kia Soul+; 2.0L, 6 speed Sport shifter(great car) on an American Car Dolly(great dolly.)
FL420 is online now   Reply With Quote

engine, 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
Engine classifications: big block vs small block Deucenut Cummins Engines 3 06-05-2017 05:06 PM
Engine Preheat vs Engine Block heater gemini5362 Tiffin Owner's Forum 8 01-03-2013 04:14 PM
Question about Engine Block Heater Wildbob52 Trailer Towing and Tow Vehicles Discussion 11 01-02-2013 06:51 PM
Engine Heater vs Block Heater patmsp Monaco Owner's Forum 4 09-29-2010 01:51 AM
Engine Block Heater question Tagalong MH-General Discussions & Problems 13 12-26-2005 10:45 AM

All times are GMT -6. The time now is 03:08 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.