Gas and Oil Home Heating Furnaces - Exhaust Fan Problem
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kevinzhang
10-16-02, 08:11 PM
I have a "Kenmore" DC90 Ultra High Efficiency furnace. when the room temperature reach the point what I set, the furnace stops working. But the exhaust fan still keeps working. What is the problem? Thank you.
Sharp Advice
10-16-02, 08:32 PM
Hello kevin. Welcome to our Heating and Cooling forum and the Do-It-Yourself Web Site.
The most likely problem is the fan relay is defective. The part is usually located in the fan blower compartment or it may be a part of or on the main electrical circuit board.
Retail parts dealers can also help determine what the possible problem may be. Bring the make, model and serial numbers if you stop in at the store.
Several other resident heating professionals replying within this forum, could have additional helpful information, suggestions, advice. Check back on your question several times for additional replies.
Read the RECENT postings within this forum, on this subject and the replies offered.
If you need further assistance, use the REPLY button to add any additional information or questions. Using this method also moves the topic back up to the top of the list automatically.
Regards & Good Luck, Forum Host & Moderator.
TCB4U2B2B Company Enterprises. Energy Conservation Consultants & Gas Appliance Diagnostics Technicians.
The most likely problem is the fan relay is defective. The part is usually located in the fan blower compartment or it may be a part of or on the main electrical circuit board.
Retail parts dealers can also help determine what the possible problem may be. Bring the make, model and serial numbers if you stop in at the store.
Several other resident heating professionals replying within this forum, could have additional helpful information, suggestions, advice. Check back on your question several times for additional replies.
Read the RECENT postings within this forum, on this subject and the replies offered.
If you need further assistance, use the REPLY button to add any additional information or questions. Using this method also moves the topic back up to the top of the list automatically.
Regards & Good Luck, Forum Host & Moderator.
TCB4U2B2B Company Enterprises. Energy Conservation Consultants & Gas Appliance Diagnostics Technicians.
dallas52
10-17-02, 01:47 AM
Is your furnace also a central air unit? If so, when the thermostat got switched from cool to heat, the fan switch may also have been accidentally moved from "auto" to "on". Check your thermostat and make sure the fan setting is on "auto.