We speak HVAC so you don't have to
CONNECT with us!

our tools and detailed reports
can help you choose the best
furnace, boiler, heat pump or
central air conditioner.

See all questions

We have a high pitched whistling sound that seems to be coming from the within the heat exchanger on our Carrier 58MCB. We have had a code 31 and made changes to venting and tried many little things. Code 31 still comes up and the whistling is still the

Post created: 2013-02-02 Type of Equipment: Furnace Views: 105

This question was created on the page: https://www.furnacecompare.com/furnaces/carrier/58mcb.html.

Whistling sound along with an error code of 31. We have adjusted the exhaust and intake pipe, sloped the furnace more so it is 3/4" sloped down in front, checked the blower motor, venter motor and housing. it sounds like it is coming from the heat exchanger? What can we do?

Your Answer

Copyright 2002 - 2016 furnacecompare.com