Lack of Cooling Call

[Punky]

Went on a call-out to a lack of cooling call. New customer, not home. Pulled into the driveway to find an obvious newer addition on the house. This can't be good. 2 Ton A/C with matched coil.

Note left with baby-sitter (think 80 year old and wrinkly - no fantasies here) said "worked last year."

Opened door to unfinished part of celler to find:











Then I made it to the furnace. Looks like Mr. Owner tied into the the HUM terminal on the circuit board with...what's this? A dimmer switch!!



Gotta love the Romex with no connectors. Romex in spade terminals directly on the board...

And what does this dimmer run? Look Benji! A duct booster!



Conclusion...A/C too small with addition on house. Addition not cooling due to crushed flex duct.

Still waiting to find out if the customer wants his job piped properly; A/C & heat upgraded.

[amd]

Most dimmers specifically say "Not to be used as a motor speed control" right on the packaging.

[cehs]

Most dimmers specifically say "Not to be used as a motor speed control" right on the packaging.

That is ONLY VALID if you know how to read.....