# Grant R290 Pump Oscillation

**URL:** <https://community.openenergymonitor.org/t/grant-r290-pump-oscillation/30322>\
**Category:** Heatpump\
**Tags:** grantr290\
**Created:** [11 September 2026 10:00 UTC](https://community.openenergymonitor.org/t/grant-r290-pump-oscillation/30322 "2026-09-11T10:00:31Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![glyn.hudson](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/glyn.hudson/32/35003_2.png) [@glyn.hudson](https://community.openenergymonitor.org/u/glyn.hudson)\
**Post date:** [21 September 2026 11:31 UTC](https://community.openenergymonitor.org/t/grant-r290-pump-oscillation/30322/4 "2026-09-21T11:31:21Z")

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> [@MrW](#):
>
> @glyn.hudson on an unrelated note, I see on your emoncms graph your target temperature moves in nice smooth .1 increments, mine only moves in integers, if I look at `sensor.heat_pump_target_temperature` I can see this only ever moves in whole numbers - I notice yours used to do this, I presumed it was a limitation of the heat pump to be honest but perhaps not! What did you change?

I think this is to do with when I switched to using [Econext: Direct local control of Grant HP290 Econet replacement (Plum ecoMAX360i)](https://community.openenergymonitor.org/t/econext-direct-local-control-of-grant-hp290-econet-replacement-plum-ecomax360i/29758) to read data from the HP

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