Setting fanMinOnTime ignored?

I'm sending the following payload, which is successfully received by my thermostat and processed. However, the fanMinOnTime setting is ignored. What gives?

var FAN_PAYLOAD = {
"selection": {
"selectionType":"registered",
"selectionMatch":""
},
"thermostat": {
"identifier": DOWNSTAIRS
},
"functions": [
{
"type":"setHold",
"params":{
"holdType":"nextTransition",
"fanMinOnTime":"10",
"coolHoldTemp":888,
"heatHoldTemp":666,
"isTemperatureAbsolute":"false",
"isTemperatureRelative":"false"
}
}
]
};
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  • You cannot set a hold that only defines a minimum fan on time. The physical thermostat does not support this.

    If you want to change the min fan time it must be accompanied with a corresponding temperature hold (either absolute or relative). If you are trying to just control the fan you can set a fan only hold by setting isTemperatureAbsolute and isTemperatureRelative to false and setting the 'fan' to 'on'.
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  • Thanks very much for the response; however, your suggestion did not work. I do want to change the minimum fan time. When I sent the payload along with an effective temperature change as you suggested, again the minimum fan time did not change. The thermostat received the payload, held the temperature at 89 deg, and did not respond with an error. Here's what I sent this time:

    var FAN_PAYLOAD = {
    "selection": {
    "selectionType":"registered",
    "selectionMatch":""
    },
    "thermostat": {
    "identifier": DOWNSTAIRS
    },
    "functions": [
    {
    "type":"setHold",
    "params":{
    "holdType":"nextTransition",
    "fanMinOnTime":"55",
    "coolHoldTemp":888,
    "heatHoldTemp":666,
    "isTemperatureAbsolute":"true",
    "isTemperatureRelative":"false"
    }
    }
    ]
    };
  • (some HTML allowed)
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