Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
 

Go Back   Keystone RV Forums > Keystone Community Forums > Freeways & Byways
Click Here to Login

Reply
 
Thread Tools Display Modes
 
Old 10-28-2020, 05:08 AM   #1
TGIF
Junior Member
 
Join Date: Oct 2020
Location: Antioch
Posts: 2
Shakedown cruise issue with furnace

While parked in driveway and running entire rv off 15 amp dogboned to 50 amp, everything worked smoothly. Now at campground plugged in to 30 amp service, the furnace will not fire up... here’s the catch, at some point in the night the two electric space heaters and tank heaters must have popped 30 amp breaker on power pole... the heater came on and ran on the battery. Restored power and now furnace won’t function again.
Any thoughts? 28 F in Cuba City WI
New High Country 385BR
TGIF is offline   Reply With Quote
Old 10-28-2020, 06:59 AM   #2
flybouy
Site Team
 
Join Date: Oct 2011
Location: Joppa, MD
Posts: 11,709
Quote:
Originally Posted by TGIF View Post
While parked in driveway and running entire rv off 15 amp dogboned to 50 amp, everything worked smoothly. Now at campground plugged in to 30 amp service, the furnace will not fire up... here’s the catch, at some point in the night the two electric space heaters and tank heaters must have popped 30 amp breaker on power pole... the heater came on and ran on the battery. Restored power and now furnace won’t function again.
Any thoughts? 28 F in Cuba City WI
New High Country 385BR
Running 2 space heaters on 30 amps won't work with the additional loads. To calculate what you can run use Ohm's law. Watts = voltage X amps and amp = watts/volts. So a 30 amp service will provide 3,600 watts (120 X 30 = 3,.600).

Space heaters typically draw around 1,500 watts, or 12.5 amps. Two of them and you are at 25 amps. Now figure in the converter charging the battery at 8 or 9 amps and you are over amperage without having the fridge or water heater on ac power.

You may have depleted the battery charge with the furnace running all night after the breaker tripped. f the dc voltage dropped to the point that the furnace wouldn't run any longer it may have "locked out".

Check the battery voltage first. If it's ok then turn the t'stat to off, then turn it back on and see if that will reset the furnace.
__________________
Marshall
2012 Laredo 303 TG
2010 F250 LT Super Cab, long bed, 4X4, 6.4 Turbo Diesel
flybouy is offline   Reply With Quote
Old 10-28-2020, 07:45 AM   #3
wiredgeorge
Senior Member
 
wiredgeorge's Avatar
 
Join Date: Nov 2017
Location: Mico, TX
Posts: 7,392
Quote:
Originally Posted by TGIF View Post
While parked in driveway and running entire rv off 15 amp dogboned to 50 amp, everything worked smoothly. Now at campground plugged in to 30 amp service, the furnace will not fire up... here’s the catch, at some point in the night the two electric space heaters and tank heaters must have popped 30 amp breaker on power pole... the heater came on and ran on the battery. Restored power and now furnace won’t function again.
Any thoughts? 28 F in Cuba City WI
New High Country 385BR

My thought is that it must be getting kind of chilly up in the northlands. Find a park with 50A service next time especially if you have to areas in the camper that are "must be heated". I am sure one of our more technical folks can help with the cabin heat but I suspect a fuse perhaps? I don't recall the heater having an AC breaker.
__________________
wiredgeorge Mico TX
2006 F350 CC 4WD 6.0L
2002 Keystone Cougar 278
2006 GL1800 Roadsmith Trike
wiredgeorge is offline   Reply With Quote
Old 10-28-2020, 07:45 AM   #4
Ken / Claudia
Senior Member
 
Join Date: Nov 2012
Location: Fruitland
Posts: 3,357
Batteries, batteries, batteries. Learn how to check them, they must be at proper levels of water and volts and all times. If not things will fail to work if using shore power or not.
Last 2 posts had great advice.
__________________
2013 24RKSWE (27ft TT) Cougar 1/2 ton series SOLD 10-2021
2013 Ford F350 4x4 CC 6.7 engine, 8 ft bed, 3.55 rear end, lariat package
Retired from Oregon State Police in 2011 than worked another 9.5 years as a small town traffic cop:
As of 05-2020, I am all done with 39 years total police work. No more uniforms for me.
Ken / Claudia is offline   Reply With Quote
Old 10-28-2020, 08:35 AM   #5
sourdough
Site Team
 
Join Date: Feb 2014
Location: W. Texas
Posts: 17,598
There's going to be a big difference between what you were running in the driveway on 15A and what you were running in the RV park - has to be. You can't run 2 space heaters, furnace and tank heaters on 15A...and therein lies your problem.

You blew the AC breaker because you had too much load; the furnace continued to run off battery power and depleted the battery(s); your furnace/thermostat depend on 12vdc to operate - it's dead so you have no furnace. I camped for several years in the winter with 30A and never popped the AC breaker BUT I knew my limitations and did not want what happened to you to happen to me. Furnace and lights - that was about it for DC voltage use. If it's cold enough to require the furnace, space heaters, tank heaters etc. I would be in a 50A place somewhere.
__________________
Danny and Susan, wife of 56 years
2019 Ram 3500 Laramie CC SWB SB 6.4 4x4 4.10
2020 Montana High Country 331RL
sourdough is offline   Reply With Quote
Old 11-04-2020, 05:17 AM   #6
TGIF
Junior Member
 
Join Date: Oct 2020
Location: Antioch
Posts: 2
What went wrong

Thanks to everyone for their thoughts and suggestions on our furnace issue.

Got my 50 amp extension and was able to keep warm with electric heaters for the remainder of trip. Furnace still not coming on when when thermostat called for it. Then I started to notice furnace would sporadically start up... the pre-ignition fan ran, the burner would roar, and I would feel some heat coming from register. Then it stopped. Lasted 2 minutes. This repeated many times during the rest of our outing.
Dropped our brand new unit at dealer when we got home. Monday morning the tech was working on the furnace. Checked all the things commonly reference in the threads like Sail switch etc.. it continued its 2 minute drill.
FINAL FIX... on the 12v side of electrical panel is an automatic resetting circuit breaker (Dometic brand) that was failing. Replaced with Buss brand and all is good. Service manager said that he has seen this failure with Dometic breaker before and contacted Keystone about it. He plans to replace that breaker on all incoming units that have Dometic part as a precaution.
TGIF is offline   Reply With Quote
Old 11-04-2020, 05:39 AM   #7
cavie
Senior Member
 
cavie's Avatar
 
Join Date: Oct 2020
Location: Port Charlotte
Posts: 240
Quote:
Originally Posted by TGIF View Post
While parked in driveway and running entire rv off 15 amp dogboned to 50 amp, everything worked smoothly. Now at campground plugged in to 30 amp service, the furnace will not fire up... here’s the catch, at some point in the night the two electric space heaters and tank heaters must have popped 30 amp breaker on power pole... the heater came on and ran on the battery. Restored power and now furnace won’t function again.
Any thoughts? 28 F in Cuba City WI
New High Country 385BR
The furnace is 12 volts and gas. Has nothing to do with the shore power except the converter providing 12 volts for control circuit and charging the battery.
__________________
2011 Keystone Sprinter 323BHS. Retired Master Electrician. All Motor Homes are RV's. All RV's are not Motor Homes.
cavie is offline   Reply With Quote
Reply

Tags
furnace

Thread Tools
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
Forum Jump

» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by the Keystone RV Company or any of its affiliates in any way. Keystone RV® is a registered trademark of the Keystone RV Company.


All times are GMT -8. The time now is 02:15 AM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2024, vBulletin Solutions, Inc.