What does a blank display signify

It is specifically designed for compatibility with Lochinvar Knight models

For veteran contractors managing York chiller maintenance

Can I use this round capacitor to replace an oval-shaped CPT0467

failure to close the pressure switch

Trane SFSWT03533 Auxiliary Switch 320074-702 What does a blank displayThe Trane SFSWT03533 Auxiliary Switch is a critical SPDT auxiliary switch designed for HVAC 20 60 Amp contactors. As the direct field replacement for the SWT3533, this genuine OEM part provides a single pole, double throw configuration featuring one normally open (NO) and one normally closed (NC) contact. Built for rugged industrial and commercial applications, it integrates seamlessly into Trane air conditioners, furnaces, and heat pumps to drive