Review Us On

Why Do I Have A Frozen Furnace?

Why Do I Have A Frozen Furnace?

The coastal areas of California go through several temperature fluctuations throughout the year. Therefore, it is always better to have your HVAC system up to date. One may not expect a furnace to freeze up in California. However, it is a common problem that requires quick resolution. Call Anaheim heating and air conditioning technician for a fast solution if you have a frozen furnace.

What Causes a Frozen Furnace?

Here are a few things that might be the cause of your frozen furnace

  • Clogged Air 

Filters are the first component through which the cold air enters the system. Dirty filters do not allow sufficient air into the system. Therefore, the internal parts do not heat up and start shutting down, causing them to freeze.

  • Clogged Ventilation Pipes

When there are cracked ventilation pipes, the warm air escapes the vents. There is also a path for the outside cold air to enter the vents. Hence, as the ventilation pipes do not have enough warmth, they start freezing.

  • Dirty Evaporator Coils

Evaporator coils handle the crucial task of converting outside air into heat. Coils covered in dust and debris do not receive enough air to convert. Therefore, they do not heat as much and start freezing up.

  • Faulty Drainage

A drain allows the water vapor to leave the furnace. If a drain is clogged or broken, the condensed water gets trapped in the furnace. This water eventually settles down on the internal parts and turns into ice. The longer it stays inside, the more it freezes the furnace causing it to shut down.

  • Unusual Refrigerant Levels

A refrigerant regulates the internal temperature of the furnace. If the refrigerant is too high or too low, it will cause the furnace to cycle frequently. Therefore, due to improper functioning, the machine may start freezing.

  • Cool Climate

The evaporator coils take time to adjust to the climate and function accordingly. They have to overwork when there is a sudden drop in outside temperature. Due to this sudden load, the furnace cycles rapidly. Hence, it causes the coils to shut down that causes them to freeze up. The furnace also freezes up if one installs it in an open area.

  • Crashing Thermostat

A thermostat is a crucial control component that directs the functioning of the furnace. If the thermostat is faulty or crashes frequently, your furnace will shut down. This underworking can cause the internal parts to freeze up.

How Do I Prevent This?

Here are a few simple things you can do to protect your furnace –

  • Place your furnace unit away from direct winds and sunlight.
  • Keep a small amount of rock salt under the drain outlet to prevent ice formation.
  • Clean and change the air filters regularly.
  • Clean the drain pan regularly.
  • Seal the ventilation pipes properly.
  • Cover the internal drain lines with heat tape.

Though you can do this, it is essential to call an expert technician for regular inspection. Look for a certified contractor who provides heating services in Long Beach, CA.

Power Pro Plumbing, Heating, and Air are among the best teams to consult for any Plumbing or HVAC troubles. We have been delivering exceptional services for the last two decades; we work with HVAC systems and water heater repair in Long Beach, CA. We will handle it all, from a minor drainage issue to a complicated HVAC repair.

Scroll to Top