In bottom of control cabinet are two control reed relays. The one on left is 24 volts dc power to coil. This is CR1. The one on right is 12 volts . THIS IS CR2.Power for the relays goes thrru terminals 2 and 10. Terminal 2 is at 11 oclock position. Terminal ten at 1 oclock position. Carefully vacuum all chips from both terminals. Move off the wire bail holding relays and wiggle slightly while pulling straight up. Look at top of each relay to verify coil voltage. Next use multimeter and check incomming voltage on pins 2 and ten on both relays. Power for both relays comes from transformers and rectifiers above the card housing in the housing which holds the large capacitors and bridge rectifiers for dc drive power. Your 24 volt power is likely good. The 12 volt supply needs checking before going to next step. With relays out also check all wires attached to terminals.
Let us know what you find.
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