R91 ballast....

[pete986]

Hi, 

The front (vertical) fluorescent bulb is not lighting.
I tested the bulb, and I believe that the small ballast/transformer (on the right side) is the problem.

I have been searching for the part number on mine with no luck.

I don't know much about the ratings engraved on the side of it, 
so I don't know "what I can get away with"

Does anyone know what modern-day transformer is compatible with this?

Robertson, part number 308590155

Thanks!

[Ron Rich]

Hi Pete,
Many options-1. How didja "test" the lamp ? Did you replace the starter ? If the lamp and starter is OK, what size is the lamp--?
Ron Rich

[pete986]

I put the lamp in a different fixture, and it lit right up.
I changed ALL the starters.
It is a 26" 18W T8 bulb.

The ballast I'm referring to was cold, while the others were warm.

[Ron Rich]

Hi Pete,
Didja swap starters--if so, and you have no light, it's about 99% sure the ballast is shot-- A replacement would be any ballast marked"18 (or) 19 watt. Ron Rich

[pete986]

Thanks!

[pete986]

Update on R91 door lighting......

I got tired of going crazy trying to find an affordable ballast that would work.

I bought a 24 inch long LED fixture from Home Depot ($16). Took the back off and wired it in.

It's tacked in position, I still need to install it a little more solidly, but its bright, cool heat

for under $20. A perfect 21st century solution. I'm considering doing the same for the two upper bulbs.