What does code 31 mean on a furnace?

What does code 31 mean on a furnace?

high pressure switch
What it means: Code 31 typically indicates a problem with the high pressure switch. This switch senses the amount of air pressure inside the furnace and will flip if the pressure is too high. Air pressure issues can occur when the furnace’s condenser coils are dirty or if the high pressure switch is faulty.

How do you reset the code 33 on a carrier furnace?

Check for air flow issues

1. Check condition of filter.
2. Open all vents and return registers.
3. Make sure the ducts and register grilles are clean.
4. Clean the A/C evaporator coil.
5. Check condition of the blower wheel.
6. Check blower motor and capacitor to make sure the blower motor is running up to speed.

What is 13 limit lockout carrier?

13 is limit circuit lockout, in which case your furnace would try and restart after 3 hours. The limit circuit is there to protect the furnace from overheating if there is insufficient airflow through the heat exchanger taking the heat away from the furnace and pushing it into your ductwork.

What causes a furnace pressure switch to fail?

Let’s check out some of the things that could be going on here. Some of the more common reasons I’ve seen furnace pressure switches either fail or not close to allow the rest of the system fire up are: A clogged port on the collection chamber to the pressure switch. An obstruction in the flue.

Are there coils in a furnace?

Furnace coils are not only typically inside the furnace assembly, but may be in their own casing, as well. Most of the problems associated with dirty coils come from the lack of access homeowners have to clean them.

How do I fix error code 33?

Fix #1 – Restart your System:

1. Sometimes, the error code 33 occurs due to temporary faults.
2. You have to click the Start button → click the Power button, and choose the Restart option.
3. If the error persists, you just shut down your system and turn it on again.

What is a code 33 on a Payne furnace?

CODE: 33. RESULT: LIMIT CIRCUIT FAULT – Indicates a limit, or flame rollout is open. Blower will run for 4 minutes or until open switch remakes whichever is longer. – Inadequate combustion air supply (Flame Roll-out Switch open).

What happens if pressure switch goes bad?

It’s what senses when water pressure has dropped to the point where the pressure tank requires more water. The switch then powers up the well pump. If the switch is bad, it won’t start the well pump and you won’t have water, so testing the switch is your first step.

Can you reset a limit switch?

The function of your furnace limit switch is to tell the fan when to turn off and on depending on the temperature in the home. However, for your own safety, don’t attempt to reset the switch without first consulting your furnace’s instruction manual.

How do you know if a pressure switch is bad?

Here are some tell-tale signs that your pressure switch is beginning to fail: Your water pressure is at or above the cut-out pressure, yet the pump doesn’t turn off. Your pump doesn’t turn on at the proper cut-in pressure. You have low water pressure even though the pump is running.