Quick question regarding my Amana Propane furnace
I have an Amana AMH95 (Model # AMH950703BX).
Installed in January 2007.
Just a quick question regarding its operation.
If we go away for the weekend, I set the thermostat at 55 degrees.
When I return home, I raise the setting to 68 degrees.
The furnace will kick on.
But, it doesn't run constantly until it has reached 68 degrees.
Meaning it will run for a while, then kick off for a few minutes, then kick back on.
So, my question is this:
When the furnace is trying to get to the set temperature, should it run constantly until it gets to the set temperature or is it normal for the unit to cycle on/off occasionally as it is trying to reach the desired temperature?
Warm air flow may be affecting your t-stat temporarily. Then ambient falls, re-starting the furnace. Watch your stat next time. If this isn't happening, call a pro, as there are other issues.
It should run constant. Is your filter clean? If it is then you will need to call a service company to check the system. If it is not and it is clogged you are a bad person and you are abusing your HVAC system.
Twilli says furnaces get tired too
No Heat No Cool You need Action Fast
are you kidding?
Originally Posted by Moose
Turn your thermostat to 90f, the burner, and blower should not stop till it reaches 90f. If it is, the unit is probably cycling on the high limit switch... The temperature rise thru the furnace can be measured. supply temp-return air temp. Your unit has listed temp. rise on rating plate inside the furnace... Usally 40-70f..You are more the likely above that.. you need to increase air flow, or reduce heat input..
Tinner... not kidding - seen it & fixed it.
was stat over a supply grille?
Thermostat is not near a supply grill. It is located in the hallway.
The return is in the ceiling above it.
thanks for the tip.....that's way beyond my knowledge.
i will let my service guy know...
Still having the problem. Thermostat was 59 degrees when I got home from work yesterday. Turned it up to 68 degrees. Furnace kicked on.
I didnt keep exact track of what temp or how long it went before it kicked off (I need to though...), but it defintely kicked off for a few minutes at least once before it reached 68 degrees.
you said i possibly need to increase air flow.....
Could my filter be causing the problem?
I have a 1" filter. 16x25x1
It is the Endust filters from Lowes.
I just changed it a few weeks ago.
This unit is only 2 years old........I hope this cycling is not damaging the unit.
What MERV rating are those filters? If the filter is too restrictive, and you dont have an ECM blower motor, the heat exchanger could be starved for air flow. This would mean there is not enough air extracting heat from the heat exchanger and it is getting too hot. This would cause the unit to shutdown due to high temp limit until it cools off. Increasing the air flow with a less restrictive filter could potentially resolve the situation if that is the problem.
Originally Posted by mrmichaeljmoore
what type of thermostat?
is whole unit shutting down like a normal cycle or does blower keep running?
on a big recovery thermostat could be cycling furnace so it does not overshoot temp setting.