Service call for a blower motor making a loud whistling noise. Technician inspected the blower motor and the capacitor. The amp draw on the motor is fine but the capacitor is weak. The static pressure was high due to a dirty filter which was causing the loud whistling noise. Replaced the filter here today and got the static pressure down and the noise taken care of. Customer was also interested in running a new gas line for propane to the furnace and doing a propane conversion. Estimates were given to the customer to consider.