Problem integrating Heiman HS1SA smoke detectors (2018, Type N) with Zigbee2MQTT

Hi,

After migrating almost 60 Zigbee devices from deCONZ II and HomeBridge to Home Assistant, I now wanted to finally pair my 3 Heiman Zigbee smoke detectors – but I ran into some issues.

They are from 2018 and should be type HS1SA-N. Currently, I can only check via VPN since I’m on a business trip and sitting in a hotel.

My current setup:

  • Intel Nuc5 / 16GB RAM / 256GB SSD
  • ZBDongle-E
  • Zigbee2MQTT
  • Software and plugins are up to date

1. Pairing

For each smoke detector, it took at least 3 attempts until they were paired without a warning (red exclamation mark).

2. Smoke detection flag

Test alarms were successfully detected, and the smoke detection flag was set.
However, it does not reset automatically. I can reset it manually, but it always switches back to on and triggers a critical alarm after every HA restart.

3. Integration failure

The smoke detector I tested now shows that it wasn’t properly integrated. I’ll try to re-pair it again this weekend.

Here are the logs when trying “Reconfigure”:

Error 2025-08-24 18:12:58 z2m: Failed to configure 'Rauchmelder Heiman - UG', attempt 2 (Error: Bind 0x00158d0004fd0fb6/1 genPowerCfg from '0x8c65a3fffe54c55d/1' failed (Delivery failed for '38556'.) at EmberOneWaitress.deliveryFailedFor (/app/node_modules/.pnpm/[email protected]/node_modules/zigbee-herdsman/src/adapter/ember/adapter/oneWaitress.ts:100:31) at EmberAdapter.onMessageSent (/app/node_modules/.pnpm/[email protected]/node_modules/zigbee-herdsman/src/adapter/ember/adapter/emberAdapter.ts:458:42) at Ezsp.emit (node:events:518:28) at Ezsp.ezspMessageSentHandler (/app/node_modules/.pnpm/[email protected]/node_modules/zigbee-herdsman/src/adapter/ember/ezsp/ezsp.ts:5076:14) at Ezsp.callbackDispatch (/app/node_modules/.pnpm/[email protected]/node_modules/zigbee-herdsman/src/adapter/ember/ezsp/ezsp.ts:734:26) at Ezsp.onAshFrame (/app/node_modules/.pnpm/[email protected]/node_modules/zigbee-herdsman/src/adapter/ember/ezsp/ezsp.ts:387:22) at UartAsh.emit (node:events:518:28) at Immediate.<anonymous> (/app/node_modules/.pnpm/[email protected]/node_modules/zigbee-herdsman/src/adapter/ember/uart/ash.ts:1194:45) at processImmediate (node:internal/timers:485:21))

Interview error:

Error 2025-08-24 18:14:56 z2m: Request 'zigbee2mqtt/bridge/request/device/interview' failed with error: 'interview of 'Rauchmelder Heiman - UG' (0x00158d0004fd0fb6) failed: Error: Interview failed because can not get active endpoints ('0x00158d0004fd0fb6')'

Do you have any idea what I could try?

Apart from this, I’m very happy and kind of regret waiting so long to switch over to HA. I was a bit afraid because of the 60 devices – it was quite a bit of work – but it was definitely worth it.
I’d really like to avoid keeping an extra Raspberry Pi with HomeBridge running just for these 3 smoke detectors.

Jan

How did you manage to pair them if you’re not physically present to press the button every 2 seconds? I suggest you remove them and start pairing again when you’re back home - smoke sensors tend to be a bit temperamental during pairing. If all else fails, try again with a fresh pair of batteries.

The link I posted above also has a reference to the false alarm notifications you mentioned. Try following the tips there - hopefully it’ll fix your issue.

That was the last thing I did at home before I had to leave. I was still physically there.
I’ll give it a try over the weekend, thanks a lot.

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