You are here: Desmair inc. > Services > Maintenance tips > Maintaining your electric furnace or geothermal system

fournaise-electriqueMaintaining your electric furnace or geothermal system

It is recommended to service your electric furnace once a year, before the start of the heating season. DO NOT SERVICE THE FURNACE YOURSELF. Contact Desmair instead. We will examine all parts carefully for any signs of damage and recommend replacements where necessary.

Remember: Only a certified professional like Desmair has the qualifications to repair or replace furnace parts.

External air filters

Your home air filter will be one of three types: disposable, washable or electronic. Before replacing or cleaning the filter, set your system to the OFF position. Replace the disposable filter as necessary with a new filter of the same dimensions. If you have an electronic air filter, check the manual for maintenance recommendations.

Fan maintenance

Inspecting rotors and fan motors will reveal if there is dust on the fan components. The fan should be inspected yearly.

Remember, only a certified professional, like Desmair, has the qualifications to perform maintenance. The electrical supply to the furnace must be shut off before servicing.

Motor lubrication

Electric furnace motors do not require lubrication as they are continuously lubricated.