Why does my commercialrooftop air conditioner work ok most of the day but stops cooling after 5:00pm most days
Question:
Answers:
It could be on a demand control switch installed by your electric company, for the previous occupant.
Glitch in the programable thermostat??
You may have another timer located elsewhere in the system. The blower fan is running, but the compressor is not. If it kept up all day long during the peak heat load, and cuts off right at 5pm, there is a timer somewhere. Contact the building manager and ask if there is a time relay somewhere else in the circuit. You may need to contact the HVAC company that services or installed the unit(s).
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