furnace fan runs when microwave/hood fan is on
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AUTHOR |
Topic:
furnace fan runs when microwave/hood fan is on |
Pam Myers
Calgary
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Posted 2/27/2009
at 5:49:31 PM
I am the 2nd owner of a home that was built in 2005. I have a microwave/hood fan combo in my kitchen. I have a high efficiency furnace. My question is this: why does the furnace fan come on:
- when the microwave is on; or
- when the hood light is on AND the microwave door is open (the microwave is not on, just the door is opened).
I have a very basic understanding about the ventilation requirements for new homes, so I understand that when the hood fan is running, the furnace fan will run as well to replace the air that is being removed by the hood fan. Should the same thing happen when the microwave is running?
When I originally moved in, the furnace fan would start running if you open the micowave door only OR if you just turn on the light in the hood fan only - basically, the fan would come on if the unit is on (even if it is just the light that is on, or the hood fan, or the microwave). I contacted the electrical company that the builder used to install the wiring to come look at it. The electrician told me that he sees this problem all the time with new homes because of a new Code. The electrician then made an adjustment inside a square metal box that was located below the electrical panel. He inserted a small screwdriver-like-tool into a small round hole and turned it slightly. He said he lowered it as far as the the new Code would allow. I assumed he meant the electrical current or voltage. What he did made it better but I still wonder if the wiring was done correctly, or is there a setting on the furnace that isn't set properly.
Any advice or suggestions will greatly be appreciated. Thank you.
Pam Myers
Calgary AB |
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AUTHOR |
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K. Krastev
Milton
All About Stucco
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Posted 3/3/2009
at 4:58:44 PM
Hire a professional guy or company to give you an aswer,, Here you are dealing with POWER and GAS which is dangerous if you atempt to do anywork by yourself?? |
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AUTHOR |
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Michael Keel
Huntsville
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Posted 3/16/2009
at 8:01:58 PM
Hi i do heating work and this sounds like a real problem it sounds as if they are connected together and if the are you have a problem that needs to fixed right away. I was a sub contractor in Toronto for many years with the gas company. and then a sub for sears for 12 years and this sounds weird. You need to shut the furnace down now! Sorry you should be aware that this is not a small problem it is a big problem. Please feel to email me at abbasservice@gmail.com |
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