diff --git a/pyasic/config/mining.py b/pyasic/config/mining.py
index 26975f57..f7ad9f7d 100644
--- a/pyasic/config/mining.py
+++ b/pyasic/config/mining.py
@@ -126,6 +126,7 @@ class MiningModeHPM(MinerConfigValue):
         return {"mode": {"mode": "turbo"}}
 
 
+@dataclass
 class StandardTuneAlgo(MinerConfigValue):
     mode: str = field(init=False, default="standard")
 
@@ -133,20 +134,22 @@ class StandardTuneAlgo(MinerConfigValue):
         return VOptAlgo().as_epic()
 
 
+@dataclass
 class VOptAlgo(MinerConfigValue):
-    mode: str = field(init=False, default="standard")
+    mode: str = field(init=False, default="voltage_optimizer")
 
     def as_epic(self) -> str:
         return "VoltageOptimizer"
 
 
 class ChipTuneAlgo(MinerConfigValue):
-    mode: str = field(init=False, default="standard")
+    mode: str = field(init=False, default="chip_tune")
 
     def as_epic(self) -> str:
         return "ChipTune"
 
 
+@dataclass
 class TunerAlgo(MinerConfigOption):
     standard = StandardTuneAlgo
     voltage_optimizer = VOptAlgo
@@ -156,6 +159,16 @@ class TunerAlgo(MinerConfigOption):
     def default(cls):
         return cls.standard()
 
+    @classmethod
+    def from_dict(cls, dict_conf: dict | None):
+        mode = dict_conf.get("mode")
+        if mode is None:
+            return cls.default()
+
+        cls_attr = getattr(cls, mode)
+        if cls_attr is not None:
+            return cls_attr().from_dict(dict_conf)
+
 
 @dataclass
 class MiningModePowerTune(MinerConfigValue):
@@ -169,7 +182,7 @@ class MiningModePowerTune(MinerConfigValue):
         if dict_conf.get("power"):
             cls_conf["power"] = dict_conf["power"]
         if dict_conf.get("algo"):
-            cls_conf["algo"] = dict_conf["algo"]
+            cls_conf["algo"] = TunerAlgo.from_dict(dict_conf["algo"])
 
         return cls(**cls_conf)
 
@@ -215,7 +228,13 @@ class MiningModeHashrateTune(MinerConfigValue):
 
     @classmethod
     def from_dict(cls, dict_conf: dict | None) -> "MiningModeHashrateTune":
-        return cls(dict_conf.get("hashrate"))
+        cls_conf = {}
+        if dict_conf.get("hashrate"):
+            cls_conf["hashrate"] = dict_conf["hashrate"]
+        if dict_conf.get("algo"):
+            cls_conf["algo"] = TunerAlgo.from_dict(dict_conf["algo"])
+
+        return cls(**cls_conf)
 
     def as_am_modern(self) -> dict:
         if settings.get("antminer_mining_mode_as_str", False):
diff --git a/pyasic/data/__init__.py b/pyasic/data/__init__.py
index eb6d1e4a..8051ea1d 100644
--- a/pyasic/data/__init__.py
+++ b/pyasic/data/__init__.py
@@ -94,9 +94,14 @@ class MinerData:
     percent_expected_wattage: float = field(init=False)
     nominal: bool = field(init=False)
     config: MinerConfig = None
-    errors: List[Union[WhatsminerError, BraiinsOSError, X19Error, InnosiliconError]] = (
-        field(default_factory=list)
-    )
+    errors: List[
+        Union[
+            WhatsminerError,
+            BraiinsOSError,
+            X19Error,
+            InnosiliconError,
+        ]
+    ] = field(default_factory=list)
     fault_light: Union[bool, None] = None
     efficiency: int = field(init=False)
     is_mining: bool = True
diff --git a/tests/config_tests/__init__.py b/tests/config_tests/__init__.py
index ca654e91..9c354230 100644
--- a/tests/config_tests/__init__.py
+++ b/tests/config_tests/__init__.py
@@ -72,7 +72,11 @@ class TestConfig(unittest.TestCase):
             },
             "fan_mode": {"mode": "manual", "speed": 90, "minimum_fans": 2},
             "temperature": {"target": 70, "hot": None, "danger": 120},
-            "mining_mode": {"mode": "power_tuning", "power": 3000, "algo": {}},
+            "mining_mode": {
+                "mode": "power_tuning",
+                "power": 3000,
+                "algo": {"mode": "standard"},
+            },
             "power_scaling": {
                 "mode": "enabled",
                 "power_step": 100,