Heating, Air Conditioning, Fridge, HVAC/mortex BMH-35


I have a Mortex BMH-35 12k furnace in a mobile home that has stopped working. Both blower and heating coils will not engage. Any suggestions on troubleshooting this unit. What parts most commonly fail, ect?


If this is a electric furnace, and nothing is running ( you can try putting the fan switch at the t-stat to ON from auto the blower motor should run independent of your heat )  , if it does not chances you either have no power to the furnace, ( double check breaker did not trip ) or you have power to unit and you have no low voltage ,your transformer ( located somewhere inside the electrical panel of your furnace ) is not supplying 24 volts . Due to a low voltage fuse that is open, or a bad transformer. You would need to use a meter and troubleshoot, if your not familiar with troubleshooting with a meter suggest calling for service.

Heating, Air Conditioning, Fridge, HVAC

All Answers

Answers by Expert:

Ask Experts




40+ years diversified experience.An HVAC/Refrigeration Self Employed Contractor since 1986. NATE Certifield. Answer questions pertaining to Residential and Commercial Air Conditioning , Warm Air Heating, Heat Pump systems.Mechanical and Electrical troubleshooting of these systems.Be as detailed as possible when describing problem.Packaged unit or split systems.No appliance questions.


Installation and Troubleshooting, Mechanical and Electrical, in following areas, Refrigeration ( Walk In and Reach In Coolers and Freezers ) Commercial Roof Top and Packaged Heating/Cooling ( Natural Gas,Propane, Electric, and Heat Pumps ) Computer Room Air Conditoning Systems,Commercial Residential Packaged and Split Systems Air Conditoning and Heat Pumps.Warm Air Oil , Natural and Propane Gas Heating systems.

Graduated from Private Technical School in 1975. An HVAC/Refrigeration Contractor . Have Unlimited Heating/Piping and Cooling Contractor License.Limited Sheetmetal Contractors License.NATE Certifield. York Certifield Master Heat Pump Technician 1986. Served 33 years combination Active Duty Air Force , Air Force Reserves and Air National Guard in the HVAC/Refrigeration Shop/Mechanical Shop. Troubleshooting/Installing HVAC/Refrigeration Equiptment Worldwide. Retiring in 2003 as a Senior NCO ,and a Mechanical Superintendent.

©2017 About.com. All rights reserved.