Unit functions, but no display. Dropped front panel. Found controller buried in grease. Cleaned out. Checked connections. Still has no display. Unit in question is the one that is not cooking correctly. Customer was guessing it was set to HI but not sure. Need display/controller. Will order. Changed out control. Booted up and got error. Called Garland twice. Both times they told me to check limit switches and t-couple wires. Did that and error still there. Looked in my book and found the error is because the control has newer software than the MCB. Called Garland back and spoke to Kevin. Said we need to install controller 4530493. Returned and installed controller. Middle platen stuck up. Had to clean out rear around limit switches. Re-gap right clam. Reset mag switches. Cooked product and adjusted times. Product hitting 160 min. Unit in use.