My furnace fan blows cold air for approximately an hour first thing in the morning. It stops momentarily, then the fan and furnace start up and heat the house normally for the rest of the day. The problem started after a power outage, and the igniter andPost created: 2016-01-13 Type of Equipment: Furnace Views: 119
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Fan blows cold air for approx. an hour first thing in the morning stops momentarily then fan and furnace start up and heat the house normally the rest of the day.What is this indicative of?
Owned for10 plus years.
Problem occurred after a power outage.
Replaced ingnighter and themostat
On 2016-01-14 Gary wrote:
This is a tricky question. The igniter and the thermostat are the most probable causes but since they were replaced we can rule them out. Other possibilities are the high limit switch or a relay switch. Because it happened after the power went out, it's possible that something shorted out. You'll probably need a heating professional to solve this problem.
If you'd like to have a contractor look at this, we can help you find one, here.