Furnace stopped working even though annual inspection and maintenance done.Very cold day and freezing cold inside the house.
Vitaliy came out the following morning, took great pains to diagnose what happened and explain the mechanism of the system and the cause of the problem; then drove to get the replacement part, drove back within an hour, and replaced the defective unit. Showed us the defective part and where the elements had failed. Tested the heat settings and explained what upcoming preventive maintenance might have to be done in the future. Outstanding service.
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