RV Thermostat Cycles to fast


  #1  
Old 10-08-09, 10:37 AM
M
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RV Thermostat Cycles to fast

I Have a 12 volt powered RobertShaw thermostat D87005. It is very basic and controls my propane furnace in a 20' RV. I am having issues with it because it cycles very fast. It will turn the heater on which will run for about 2 minutes and then it turns off for a few minutes and then back on again. Are there any controls that should be able to slow the cycle rate down? The thermostat is not located near a heat duct.

Any suggestions would be appreciated
markschm
 
  #2  
Old 10-08-09, 11:21 AM
G
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Location: Hamilton County, Ohio
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There should be a temperature differential setting. Check your instructions. If you cannot find the book, they may be on the inside of the cover. Give it a few degrees of differential and you should reduce the cycling. You can also post your question in the thermostat sub section of the heating and cooling section of the forums.
 
  #3  
Old 10-08-09, 02:34 PM
G
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Got your PM but it's best to keep it on this site so others can see and hopefully contribute.
I could not find your model listed, but if you go to their site, you should be able to find a similar model, along with an instruction sheet. If all else fails, use their "contact us" page to get help from them,

Their web site is www.robertshaw.com
 
  #4  
Old 10-15-09, 10:57 PM
H
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have you solved this yet?
Check your heat vents you will likely find that one is sending warm air right to the t-stat. It doesnt have to be to all that close to cause this. so it calls for heat, the blower comes on, the furnace lights, warm air starts blowing on the t-stat and presto in no time the t-stat sees that things have warmed up and shuts the furnace off. Things cool off fast and the whole process starts all over again.
Hapdad
 
 

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