Hey,
Has anyone noticed their external fan speed on their Samsung heat pump (AE160CXYDEK/EU (gen 7 r290 16kw) getting stuck on full fan speed?
This morning, I decided to go outside and have a look at what the heat pump was doing, and as soon as I opened the door, I was surprised to find it was operating the fan at full speed.
I toggled quiet mode, which made the unit go from 25rpm to 20rpm (no difference in heat delivery and an increase in COP, I presume from the fan not working so hard!)
I toggled the quiet mode off again, and it remained stable at 20rpm.
The Data
After reviewing the logs, I can see it’s done this before. This was the last time the outside temperature dropped low enough for stable state running.
Cure
I am attempting to cure this by running an home assistant automation that will trigger if the fan has been full speed for 15m and the system is running in heating mode
Home Automation Script
alias: Toggle Quiet mode when fan is full speed
description: “”
triggers:
- trigger: numeric_state
entity_id: sensor.ehs_modulation_fan
for:
minutes: 15
above: 23
conditions:
actions:
- if:
- condition: state
entity_id: sensor.ehs_3_way_valve_position
state: “0”
then: - action: logbook.log
data:
name: “Quiet Mode”
message: “Fan has been above 23 for 15m and valve is 0 — toggling quiet mode ON” - action: switch.turn_on
target:
entity_id: switch.ehs_quiet_control - delay:
seconds: 30 - action: switch.turn_off
target:
entity_id: switch.ehs_quiet_control - action: logbook.log
data:
name: “Quiet Mode”
message: “Quiet mode toggle pulse complete (switch turned OFF)”
else: - action: logbook.log
data:
name: “Quiet Mode”
message: “Fan > 23 for 15m but valve not 0 — no toggle performed”
- condition: state
mode: restart