Smoke alarms after generator shuts down

[fayc11]

Hi
Has anyone run into or have idea why the smoke alarms in a residential home go into alarm
After the generator at home shuts off.

we just lost the power here in the northeast for a few days, generator at home ran fine, once normal power was restored,
Generator shutdown and then all the smokes went into alarm.
Any thoughts or ideas I would appreciated.

Thank you

 

[qcroanoke]

Do they stay in alarm? Or reset and go green after a few seconds in alarm?
Battery backup?

 

[fayc11]

After the generator shut down, the smoke alarms go off and the eventually they shut off.

I have no idea nor have I ever heard this before.

Thank For any thoughts or Ideas

 

[mopowr steve]

Is it full on alarm or just a chirp coming from all of them in response to the intermittent loss/regain of power

 

[fayc11]

full alarm no chirping

 

[Fred B]

Are these interconnected and are some CO detector types?

 

[fayc11]

No CO detector, And yes the smokes are all interconnected

Thank You

 

[synchro]

So the smoke alarms aren't happening when the generator shuts down after periodic "exercise" runs?

 

[fayc11]

Smoke alarms all go off when the generator shuts down

 

[hillbilly1]

So it transfers back to utility, then after cool down, generator shuts down, then smokes go off? Very interesting.

 

[gadfly56]

Smoke alarms all go off when the generator shuts down

Reading hillbilly1 at post #10, immediately after transfer (<60 seconds), or only after the generator actually shuts down?

 

[goldstar]

Brand name on the smoke alarms ? You may have to contact the manufacturer. If you do, try to get someone in"tech support" and not a clerk reading off a teleprompter.

 

[fayc11]

Thank You
Really appreciate it.

 

[bh08742]

I have a case where the co detectors (2) go off when the power goes off. Interconnected system with plain smokes. Smokes don't go off-just the combination detectors. Anybody else have this experience?