diff --git a/pyasic/config/fans.py b/pyasic/config/fans.py
index dc0ecee25..dc832029c 100644
--- a/pyasic/config/fans.py
+++ b/pyasic/config/fans.py
@@ -15,7 +15,7 @@
 # ------------------------------------------------------------------------------
 from __future__ import annotations
 
-from typing import TypeVar
+from typing import Any, TypeVar
 
 from pydantic import Field
 
@@ -337,28 +337,45 @@ def from_vnish(cls, web_settings: dict):
 
     @classmethod
     def from_boser(cls, grpc_miner_conf: dict):
-        try:
-            temperature_conf = grpc_miner_conf["temperature"]
-        except LookupError:
+        temperature_conf = grpc_miner_conf.get("temperature")
+        if not isinstance(temperature_conf, dict):
             return cls.default()
 
-        keys = temperature_conf.keys()
-        if "auto" in keys:
-            if "minimumRequiredFans" in keys:
-                return cls.normal(minimum_fans=temperature_conf["minimumRequiredFans"])
+        def _maybe_int(value: Any) -> int | None:
+            if isinstance(value, (int, float, str)) and value != "":
+                try:
+                    return int(value)
+                except (TypeError, ValueError):
+                    return None
+            return None
+
+        min_fans = _maybe_int(temperature_conf.get("minimumRequiredFans"))
+
+        def _build_conf(conf_section: object) -> dict:
+            conf: dict = {}
+            if isinstance(conf_section, dict):
+                speed = _maybe_int(conf_section.get("fanSpeedRatio"))
+                if speed is not None:
+                    conf["speed"] = speed
+            if min_fans is not None:
+                conf["minimum_fans"] = min_fans
+            return conf
+
+        if "auto" in temperature_conf:
+            if min_fans is not None:
+                return cls.normal(minimum_fans=min_fans)
             return cls.normal()
-        if "manual" in keys:
-            conf = {}
-            if "fanSpeedRatio" in temperature_conf["manual"].keys():
-                conf["speed"] = int(temperature_conf["manual"]["fanSpeedRatio"])
-            if "minimumRequiredFans" in keys:
-                conf["minimum_fans"] = int(temperature_conf["minimumRequiredFans"])
-            return cls.manual(**conf)
-        if "disabled" in keys:
-            conf = {}
-            if "fanSpeedRatio" in temperature_conf["disabled"].keys():
-                conf["speed"] = int(temperature_conf["disabled"]["fanSpeedRatio"])
+
+        if "manual" in temperature_conf:
+            conf = _build_conf(temperature_conf.get("manual"))
             return cls.manual(**conf)
+
+        if "disabled" in temperature_conf:
+            conf = _build_conf(temperature_conf.get("disabled"))
+            if conf.get("speed") is not None:
+                return cls.manual(**conf)
+            return cls.immersion()
+
         return cls.default()
 
     @classmethod
diff --git a/pyasic/config/temperature.py b/pyasic/config/temperature.py
index e16cc00c4..db5b1cb87 100644
--- a/pyasic/config/temperature.py
+++ b/pyasic/config/temperature.py
@@ -114,32 +114,44 @@ def from_vnish(cls, web_settings: dict) -> TemperatureConfig:
 
     @classmethod
     def from_boser(cls, grpc_miner_conf: dict) -> TemperatureConfig:
-        try:
-            temperature_conf = grpc_miner_conf["temperature"]
-        except KeyError:
+        temperature_conf = grpc_miner_conf.get("temperature")
+        if not isinstance(temperature_conf, dict):
             return cls.default()
 
         root_key = None
         for key in ["auto", "manual", "disabled"]:
-            if key in temperature_conf.keys():
+            if key in temperature_conf:
                 root_key = key
                 break
         if root_key is None:
             return cls.default()
 
-        conf = {}
-        keys = temperature_conf[root_key].keys()
-        if "targetTemperature" in keys:
-            conf["target"] = int(
-                temperature_conf[root_key]["targetTemperature"]["degreeC"]
-            )
-        if "hotTemperature" in keys:
-            conf["hot"] = int(temperature_conf[root_key]["hotTemperature"]["degreeC"])
-        if "dangerousTemperature" in keys:
-            conf["danger"] = int(
-                temperature_conf[root_key]["dangerousTemperature"]["degreeC"]
-            )
+        raw_conf = temperature_conf.get(root_key) or {}
+        if not isinstance(raw_conf, dict):
+            return cls.default()
 
+        def _read_temp(temp_block: object) -> int | None:
+            if isinstance(temp_block, dict):
+                temp_value = temp_block.get("degreeC")
+            else:
+                temp_value = temp_block
+            try:
+                return int(temp_value) if temp_value is not None else None
+            except (TypeError, ValueError):
+                return None
+
+        conf: dict = {}
+        target_temp = _read_temp(raw_conf.get("targetTemperature"))
+        if target_temp is not None:
+            conf["target"] = target_temp
+        hot_temp = _read_temp(raw_conf.get("hotTemperature"))
+        if hot_temp is not None:
+            conf["hot"] = hot_temp
+        danger_temp = _read_temp(raw_conf.get("dangerousTemperature"))
+        if danger_temp is not None:
+            conf["danger"] = danger_temp
+
+        if conf:
             return cls(**conf)
         return cls.default()
 
diff --git a/tests/config_tests/test_boser_25_01.py b/tests/config_tests/test_boser_25_01.py
new file mode 100644
index 000000000..640d1d7c2
--- /dev/null
+++ b/tests/config_tests/test_boser_25_01.py
@@ -0,0 +1,37 @@
+import unittest
+
+from pyasic.config import FanModeConfig, TemperatureConfig
+
+
+class TestBoserConfig25_01(unittest.TestCase):
+    def test_fan_mode_handles_null_temperature(self):
+        grpc_conf = {"temperature": None}
+        self.assertEqual(FanModeConfig.default(), FanModeConfig.from_boser(grpc_conf))
+
+    def test_fan_mode_handles_empty_manual(self):
+        grpc_conf = {"temperature": {"manual": None, "minimumRequiredFans": None}}
+        self.assertEqual(FanModeConfig.manual(), FanModeConfig.from_boser(grpc_conf))
+
+    def test_fan_mode_auto_with_missing_min_fans(self):
+        grpc_conf = {"temperature": {"auto": {}, "minimumRequiredFans": None}}
+        self.assertEqual(FanModeConfig.normal(), FanModeConfig.from_boser(grpc_conf))
+
+    def test_fan_mode_disabled_without_speed_defaults_to_immersion(self):
+        grpc_conf = {"temperature": {"disabled": {}, "minimumRequiredFans": 0}}
+        self.assertEqual(FanModeConfig.immersion(), FanModeConfig.from_boser(grpc_conf))
+
+    def test_temperature_allows_partial_payload(self):
+        grpc_conf = {"temperature": {"auto": {"targetTemperature": {"degreeC": 70}}}}
+        self.assertEqual(
+            TemperatureConfig(target=70), TemperatureConfig.from_boser(grpc_conf)
+        )
+
+    def test_temperature_returns_default_on_null(self):
+        grpc_conf = {"temperature": None}
+        self.assertEqual(
+            TemperatureConfig.default(), TemperatureConfig.from_boser(grpc_conf)
+        )
+
+
+if __name__ == "__main__":
+    unittest.main()