5692 on a Worcester Bosch Bosch Compress 5800i Hybrid Heat Pump: Incompatible SW version in the heat generator, or unsupported heat generator connected
Short answer
On a Worcester Bosch heat pump, 5692 means: Incompatible SW version in the heat generator, or unsupported heat generator connected. The heat pump keeps running with some functions stopped. An engineer is needed to fix the cause.
Reviewed 23 September 2026 · 1 source
What it means
The manual says: Incompatible SW version in the heat generator, or unsupported heat generator connected.
Part involved: boiler software.
When it shows: Incompatible SW version in the heat generator, or unsupported heat generator connected.
Likely causes:
- Boiler software incompatible / unsupported boiler.
Is it safe?
| Does the heat pump stop? | Partly |
|---|---|
| Severity | Fault — clears by itself when the condition goes |
| Engineer needed? | Yes |
The heat pump keeps running with some functions stopped.
Resetting itself: Clears when cause removed.
Manual reset: Manual 12.1: fault indications can be reset on the control unit in the diagnostic menu with Reset.
What you can check
- Read and note the full code (and sub-code) shown on the controller and pass it to your installer.
- If the hybrid system stops using the heat pump, the gas boiler may still provide heat - do not attempt repairs yourself.
What the engineer will check
- Check conventional heat source; software update if possible.
Who to ask for: Gas Safe registered engineer + heat pump installer.
Certification: Gas Safe registration for any work on the boiler; F-gas for refrigerant circuit.
What you might notice
Sources
- Installation/operating instructions Hybrid-Set CSH5800iAW O ↗ · 6721875003 (2024/08) · page 41 · Reviewed 23 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 23 September 2026