Reply
 
Thread Tools Display Modes
 
Old 12-02-2018, 10:34 PM   #1
Bronze Member
 
Join Date: Dec 2016
Location: Ontario
Posts: 24
Default Suburban heater issue

I thought my Suburban furnace was acting up because of erratic 12V supply but the power's all fixed up and I've still got this symptom:
The furnace will start and run till the thermostat shuts it down. The van cools, but the furnace won't start a new cycle of heat. i can hear a faint electrical hum at the furnace when the thermostat asks for heat, but it won't start. Come back another day and the same thing happens.
Has anyone had this experience?
__________________

Craig.Evans is offline   Reply With Quote
Old 12-02-2018, 11:14 PM   #2
Platinum Member
 
Join Date: Aug 2010
Location: Minnesota
Posts: 7,156
Default

Quote:
Originally Posted by Craig.Evans View Post
I thought my Suburban furnace was acting up because of erratic 12V supply but the power's all fixed up and I've still got this symptom:
The furnace will start and run till the thermostat shuts it down. The van cools, but the furnace won't start a new cycle of heat. i can hear a faint electrical hum at the furnace when the thermostat asks for heat, but it won't start. Come back another day and the same thing happens.
Has anyone had this experience?

It sounds like the air circulating motor may have a dead spot or tight bearings when warm. If you pull the furnace out and try to run it without gas, the fans should still run so you could watch and even give the motor a spin to see if it would start, if that was the issue.
__________________

booster is online now   Reply With Quote
Old 12-03-2018, 01:43 PM   #3
Bud
Platinum Member
 
Join Date: May 2016
Location: LA
Posts: 680
Default

Quote:
Originally Posted by Craig.Evans View Post
I thought my Suburban furnace was acting up because of erratic 12V supply but the power's all fixed up and I've still got this symptom:
The furnace will start and run till the thermostat shuts it down. The van cools, but the furnace won't start a new cycle of heat. i can hear a faint electrical hum at the furnace when the thermostat asks for heat, but it won't start. Come back another day and the same thing happens.
Has anyone had this experience?
The thermostat in my 05/04 190P will have corrosion on/in ...... the temperature slide control every few years. I just spray carb cleaner or = and then slide the knob up and down a bunch!!! Otherwise, it will not operate appropriately. It looks like this:

https://www.amazon.com/Dometic-31069...ZV7SEC6ZTK1TXT

Bud
Bud is offline   Reply With Quote
Old 12-10-2018, 06:07 PM   #4
Bronze Member
 
Join Date: Dec 2016
Location: Ontario
Posts: 24
Default Eureka! Found the problem!

Thanks for everybody's support---
The solution was a new fan motor. What was interesting and not quite established was why the fan would start after a long period of inactivity, but not after the initial start. It seemed to fail when it was warmed up.
Regardless, the new motor has it licked

Thanks again!
Craig.Evans is offline   Reply With Quote
Old 12-10-2018, 08:10 PM   #5
Platinum Member
 
Join Date: Dec 2017
Location: Arizona
Posts: 196
Default

Craig: Glad you have it solved. Did they have to pull the whole heater to put in the new fan?
GallenH is offline   Reply With Quote
Old 12-11-2018, 02:02 PM   #6
Bronze Member
 
Join Date: Dec 2016
Location: Ontario
Posts: 24
Default

Hello Gallen,
The whole heater had to come out. it was a little more than I was up for, but I've got a great propane guy nearby- he even had the fan in stock!
__________________

Craig.Evans is offline   Reply With Quote
Reply

Tags
furnace, suburban, thermostat

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT. The time now is 04:03 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2019, vBulletin Solutions, Inc.