diff --git a/ohmpi/hardware_components/abstract_hardware_components.py b/ohmpi/hardware_components/abstract_hardware_components.py
index 2f788aadee3c6b2c9e0f83d2699d51aab8e28e6d..be4c42c34c438d1ee7bf7ce046dcd12331017ab2 100644
--- a/ohmpi/hardware_components/abstract_hardware_components.py
+++ b/ohmpi/hardware_components/abstract_hardware_components.py
@@ -53,7 +53,7 @@ class PwrAbstract(ABC):
         self._state = 'off'
         self._current_min = kwargs.pop('current_min', 0.)
         self._current_max = kwargs.pop('current_max', 0.)
-        self._current_min = kwargs.pop('voltage_min', 0.)
+        self._voltage_min = kwargs.pop('voltage_min', 0.)
         self._voltage_max = kwargs.pop('voltage_max', 0.)
 
     @property
diff --git a/ohmpi/hardware_system.py b/ohmpi/hardware_system.py
index e8ec50abac9c97d58d7816cb333f76066d3854d5..69967c3067afe4704150cd742f6e7f7593d497b1 100644
--- a/ohmpi/hardware_system.py
+++ b/ohmpi/hardware_system.py
@@ -21,14 +21,12 @@ pwr_module = importlib.import_module(f'ohmpi.hardware_components.{HARDWARE_CONFI
 tx_module = importlib.import_module(f'ohmpi.hardware_components.{HARDWARE_CONFIG["tx"]["model"]}')
 rx_module = importlib.import_module(f'ohmpi.hardware_components.{HARDWARE_CONFIG["rx"]["model"]}')
 MUX_CONFIG = {}
-# mux_boards = []
 
 for mux_id, mux_config in HARDWARE_CONFIG['mux']['boards'].items():
     mux_module = importlib.import_module(f'ohmpi.hardware_components.{mux_config["model"]}')
     MUX_CONFIG[mux_id] = mux_module.MUX_CONFIG
     MUX_CONFIG[mux_id].update(mux_config)
     MUX_CONFIG[mux_id].update({'id': mux_id})
-    # mux_boards.append(mux_id)
 
 TX_CONFIG = tx_module.TX_CONFIG
 RX_CONFIG = rx_module.RX_CONFIG
diff --git a/ohmpi/ohmpi.py b/ohmpi/ohmpi.py
index 8dce80b4e655c1d8b17b27ab74f29e8b0394499e..e7b454ebd3daadb382373b068925b8a3707aa651 100644
--- a/ohmpi/ohmpi.py
+++ b/ohmpi/ohmpi.py
@@ -767,7 +767,7 @@ class OhmPi(object):
             Bypasses checks for A==M or A==M or B==M or B==N (i.e. used for rs-check)
         """
         assert len(quadrupole) == 4
-        if self._hw.tx.voltage > self._hw.rx.max_voltage and bypass_check:
+        if self._hw.tx.pwr.voltage > self._hw.rx.max_voltage and bypass_check:
             self.exec_logger.warning('Cannot bypass checking electrode roles because tx voltage is over rx maximum voltage')
             return False
         else: