Dispatched our Montrose CA area technician for a no heat call. Upon arrival, our tech inspected the ICP air conditioner and found a code 4 on the circuit board. Checked for fresh air issues, found fresh air intakes closed and several supply registers closed. Open and cleaned all, ran and cycled units to confirm trip issues were resolved. Reprogrammed the thermostat in one of the offices per tenant request. Site heating normally again.
