Applicable to models: LA6MI, LA9MI, LA12MI, LA16MI
Issue: Error code H15 shown on the display. No heat, compressor is stopped.
What this means: Compressor temperature sensor abnormality.
Until an engineer can attend, it should still be possible to use the electric backup. To enable the backup search for the guide "How to I switch on the backup on the LA-MI heat pump?" on the GDHV Help Centre.
Action: Engineer visit needed. Heat pump must be safely isolated from mains supply before carrying out any work! Engineer to check the sensor cable connection onto the PCB & check probe resistance vs known temperature, following the flow chart:
Location of CN-TANK temperature probe on compressor:
Location of CN-TANK connector plug on main Refrigerant PCB (LA6MI / LA9MI):
Location of CN-TANK connector plug on main Refrigerant PCB (LA12MI / LA16MI):
Possible parts, depending on engineer diagnosis:
• Compressor temperature sensor "CN-TANK" for LA6MI or LA9MI part: X-2511020.
Same sensor can be used for LA12MI / LA16MI but cable may need to be extended.
• Main Refrigerant PCB (part number depends on model of heat pump)
LA6MI part: X-2511024
LA9MI part: X-2511038
LA12MI part: X-2511044
LA16MI part: X-2511057
Require additional help? Please follow link below
https://glendimplexservice.freshdesk.com/a/solutions/articles/79000136321
Was this article helpful?
That’s Great!
Thank you for your feedback
Sorry! We couldn't be helpful
Thank you for your feedback
Feedback sent
We appreciate your effort and will try to fix the article