Frozen Well Pump Pressure Switch? Here’s What You Need to Know

One of the most important parts of a well pump is the pressure switch, which regulates the water pressure coming into your house. When water is required, it activates and deactivates the pump accordingly. The switch activates the pump to refill the water tank to the desired pressure when the pressure in the tank falls below a certain threshold. On the flip side, the pressure triggers the switch to shut off the pump. The switch is an integral part of the well system since it cuts power to the pump when it’s not needed, prolonging its lifespan.

The pressure switch on the well pump, however, can freeze up and stop working on rare occasions. When this occurs, it can disrupt your well system and threaten your water supply. This article will go over the signs, causes, and treatments for a well pump pressure switch that has frozen.

What is a well pump pressure switch?

Pressure SwitchLet’s define a frozen well pump pressure switch before diving into the topic at hand. The pressure of your well’s water can be adjusted with the use of a pressure switch for the pump. It monitors the water pressure in a storage tank and activates or deactivates the well pump motor accordingly. The water pressure switch activates the pump when the pressure drops below a set point and deactivates it when the pressure reaches the set maximum.

Why a Well Pump Pressure Switch May Freeze

Your well system’s water can freeze when it gets below freezing, which can lead to a number of issues, including a frozen well pump pressure switch. The following are some typical reasons for a frozen pressure switch:

  1. Lack of insulation: Your pipes or pressure tank are more likely to freeze if they are improperly insulated.
  2. Power outage: Should there be a power outage, the pressure switch may freeze since your well pump won’t be able to keep the water flowing.
  3. Thermostat malfunction: If your well house heater’s thermostat isn’t functioning properly, the temperature inside could fall below freezing.

Frozen Well Pump Pressure Switch Warning Signals

Knowing the reasons for a frozen well pump pressure switch has made it necessary for you to learn how to spot its symptoms. Several typical warning indicators are listed below:

  1. Low water pressure: If your water pressure is lower than usual, it can mean that the pressure switch on your well pump is frozen.
  2. Short cycling: If your well pump is regularly turning on and off, your pressure switch may be frozen.
  3. Pump won’t start: If your pump won’t start at all, the pressure switch is probably frozen.

How to Fix a Frozen Well Pump Pressure Switch

There are various actions you can take to fix the situation if you fear that the pressure switch on your well pump has frozen. These are some crucial actions you may take to address the issue:

Inspect the circuit breaker: It is essential that you make sure the circuit breaker in charge of your well pump motor hasn’t tripped before continuing with any more measures. If it has, try resetting it to see if that fixes the problem.

Inspect the pressure tank. Examine the pressure tank closely to look for any damage or leaks that are obvious. If you happen to notice any of these symptoms, the tank probably needs to be replaced. If you are unclear about what to do, make sure to speak with a qualified well technician.

Test the pressure switch: Carefully check the continuity of the pressure switch with a multimeter. This will enable you to assess whether the switch is operating at its best. The switch might need to be changed if it isn’t operating properly.

Replace the pressure switch: If the pressure switch is discovered to be defective, you must immediately replace it. Make certain the replacement switch you buy will work with your well system. For the replacement process to be completed successfully and securely, it is advised that you seek the advice of a well-trained technician.

Frozen Well Pump Pressure Switch Prevention

To avert the occurrence of a frozen well pump pressure switch, it is prudent to take preventive measures beforehand. In order to accomplish this objective, there are various techniques one can employ. The following are a few ways that can assist you in preventing the freezing of your pressure switch:

  1. Install a freeze control device: This device operates by activating your well pump motor in the event the temperature descends below a specific threshold, thus deterring your pipes and pressure tank from freezing.
  2. Insulate your pipes and pressure tank: Proper insulation of your pipes and pressure tank is crucial in thwarting the possibility of their freezing in low temperatures.
  3. Install a well house heater: By installing a well house heater, the internal temperature of your well house can be elevated beyond freezing, thereby safeguarding your well pump pressure switch from freezing.


Encountering a frozen well pump pressure switch can be an exasperating ordeal. However, it is paramount to address the issue promptly to avert further harm to your health system. Being cognizant of the indications of a frozen pressure switch and taking preemptive measures to forestall its occurrence can guarantee the smooth and efficient functioning of your well system throughout the year. It is vital to always adhere to safety protocols when handling electricity and well systems to ensure the well-being of yourself and others.

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