# Is this a varistor?

Can someone id this green part? Z5V 104Z 500V I think maybe it's a varistor (like the blue one in the lower-right of the image) but haven't been able to find a replacement.

• That is a capacitor, the varistor is the blue disk on the right-hand-side of the picture. (The thingies with the single black line are $0 ~\Omega$ resistors :-) – skvery Mar 12 '17 at 20:00
• What's the DC PS voltage(s) reading(s), both before and after the regulator(s)? – Mike Waters Mar 13 '17 at 20:55
• And does that relay (KLT1C12DC24) pull in? It should make an audible click when it does. – Mike Waters Mar 13 '17 at 21:08