My Spa has been plodding along happily for a week or so, then it seems a confused message led to the temperature thinking it was 70'C where it has persisted...

The MQTT debug output looks like this:

Spa/time/state 07:16
Spa/heatingmode/state ON
Spa/heat_mode/state heat
Spa/heatstate/state OFF
Spa/highrange/state ON
Spa/jet_1/state OFF
Spa/jet_2/state OFF
Spa/circ/state OFF
Spa/blower/state OFF
Spa/light/state OFF
Spa/relay_1/state OFF
Spa/relay_2/state ON
Spa/target_temp/state 35.00
Spa/time/state 07:17
Spa/heatingmode/state ON
Spa/heat_mode/state heat
Spa/heatstate/state OFF
Spa/highrange/state ON
Spa/jet_1/state OFF
Spa/jet_2/state OFF
Spa/circ/state OFF
Spa/blower/state OFF
Spa/light/state OFF
Spa/relay_1/state OFF
Spa/relay_2/state ON
Spa/node/msg 7e 05 fe bf 00 ac 7e
Spa/node/msg 7e 08 fe bf 02 23 f1 73 ab 7e
Spa/node/id 35
Spa/target_temp/state 70.00
Spa/time/state 07:18
Spa/heatingmode/state ON
Spa/heat_mode/state heat
Spa/heatstate/state OFF
Spa/highrange/state ON
Spa/jet_1/state OFF
Spa/jet_2/state OFF
Spa/circ/state OFF
Spa/blower/state OFF
Spa/light/state OFF
Spa/relay_1/state OFF
Spa/relay_2/state ON
Spa/target_temp/state 70.00

Not quite sure what has happened, would welcome any suggestions :-)

David