Full Description
Reviews

Expansion Module System 450 for Johnson Controls Part# C450CQN-4

Existing reviews

Compatibility Feedback

Wasnt completely sure this would match at first since the control panel stopped responding randomly. Thankfully needed basic hand tools only and everything is working again.

From: Bob | Date: 8/6/2025 9:36 AM

Was this review helpful? Yes No (0/0)

Replacement Observation

Used this replacement after the control panel stopped responding randomly. Access was a little tight behind the panel. Noise issue disappeared after replacement.

From: Bob | Date: 12/7/2025 8:36 AM

Was this review helpful? Yes No (0/0)

Only registered users can write reviews