The thermocouple has to be in the flame or it being too cool will shut down the pilot and the burner gas feed, a safety feature. Watch for any drafts around the flame that may push the flame away from the thermocouple.
Read the instructions on the furnace for any pilot lighting procedures. You normally need to hold a button down with the gas valve in a particular position and a freshly lit pilot flame for one minute. That is the time it takes for the thermocouple to come up to temperature.
Electronic pilots shouldn't need to be lit but I don't have any experience there. Never had a house that modern.
Steve
From: jay.mendoza72 <jay.mendoza72@yahoo.com>
To: DoIt_Yourself@yahoogroups.com
Sent: Thu, April 19, 2012 5:12:08 PM
Subject: [DIY] Wall Furnace Problem
Hello,
I'm hoping to find some answers here regarding my newly installed Wall Furnace. It's a brand new 25,000 BTU Natural Gas Top-Vent Wall Furnace. Everything worked well when we lit up the pilot but when we increased the thermostat past 70 degrees the pilot shuts off. I've tried several times and it's always the same problem. I did some research and one reason I think that might cause it is the gas line:
-The gas line from the city coming into the house is 3/4 inch.
-The distance from the gas meter to the furnace is approximately 85 Feet.
-From the gas meter at the front of the house, the guy installed a 3/4 Inch gas pipe that runs underneath the house is about 32 Feet.
-And from there, he connected it to a 1/2 Inch gas pipe all the way to the furnace.
If anybody can tell me what's causing this problem of mine would be very much appreciated.
Also, if this is the case, will a 14,000 BTU Wall Furnace work instead?
Thanks in advance!!!
Jay
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