Error 33 is a Limit Circuit Fault. It means that the high limit or flame rollout switch is open. This can lead to error code 13, Limit Circuit Lockout. Error 13 means that the limit or flame rollout has been open for more than 3 minutes.
Why does my furnace limit switch keep tripping?
If the air inside your furnace gets too hot, the limit switch trips to prevent overheating. If the furnace high limit switch trips due to overheating, there is likely an airflow issue that is preventing proper air movement through the system. Check your air filter, and replace it if dirty.
What does code 33 mean on a furnace?
October 10, 2019. Error Code 33. On a Carrier furnace, it means restricted air flow, and I’ll never forget it.
How do I fix code 33 on my Payne furnace?
If open less than 3 minutes status code #33 continues to flash until blower shuts of Flame rollout switch requires manual reset. Check for: – Restricted vent – Proper vent sizing – Loose blower wheel – Excessive wind – Dirty filter or restricted duct system. – Defective blower motor or capacitor.
What is a code 33 on a Rheem furnace?
Rheem furnaces are all equipped with an advanced 7-segment diagnostic display you can use as a guide if something goes wrong with your heating system.
Rheem Furnace Error Codes.
|Search Search in Rheem Error Code What this means|
|Rheem Error Code||What this means|
|Error Code 33||Roll-out switch problem.|
What causes limit circuit lockout?
 LIMIT CIRCUIT LOCKOUT — Lockout occurs if the limit or flame rollout switch is open longer than 3 minutes or 10 successive limit trips occured during high-heat. Control will auto-reset after 3 hours.
How do you reset the limit switch on a furnace?
How to Reset a Furnace Limit Switch
- Locate your furnace’s heating duct. …
- Locate the white limit switch. …
- Look at each arm to identify the settings. …
- Identify the component (setting) located in between the two arms. …
- Set the temperature on the middle component to approximately 105 to 115 degrees Fahrenheit.
What is the life expectancy of a Rheem furnace?
Rheem furnaces last approximately 15 to 20 years.
How do I reset my Rheem furnace?
Steps to Reset Your RHEEM Furnace
- Make sure the pilot light is out.
- Turn down the thermostat temperature setting.
- Turn off the circuit breaker.
- Turn the gas valve off.
- Turn the circuit breaker back on.
- Turn the gas valve back on.
- Press and hold the reset button for about 30 seconds.
How do you reset a Rheem furnace control board?
8 Steps to Reset Your Rheem Furnace
- Check to see if the pilot light is off. …
- Set the thermostat to the lowest possible setting. …
- Switch off the power. …
- Close the gas supply to the furnace. …
- Reignite the pilot light with a matchstick or lighter. …
- Turn on the power and the gas supply. …
- Press the reset button and hold for 30 seconds.
Why is my Rheem furnace keeps shutting off?
If your furnace keeps shutting off, it could be due to low airflow. There are several indirect issues that cause low airflow. Dirty Air Filters. If you don’t change your air filters often enough, the filters will become dirty and clogged, which means the heat exchanger retains heat and eventually causes it to overheat.
How many times can I hit the reset button on my furnace?
Don’t hit “reset” more than twice. The process pumps oil into the burner chamber, where it can accumulate if you have no ignition. Then when the furnace finally does start, it can do so explosively. So if the button won’t reset, or quickly pops up again, it’s time to call a professional repair service.
Where is the Rheem reset button?
If tripped, to reset your Rheem air conditioner unit, push and hold the reset button found in the bottom right part of the outside unit, next to the refrigeration lines. Hold the button for three seconds.
How do I reset my Rheem control unit?
First, ensure that the unit is powered on. Next, open the front panel to locate the red reset button near the thermostat. Press it down until it clicks in place. The unit should resume normal operation.
What are the codes for a Rheem furnace?
Quote from Youtube video: Many other furnaces Rheem ones don't use flashing LED light sequences to indicate errors and the display will instead give you a simple code you can use for Diagnostics.
How do I reset my Rheem high pressure switch?
How to Restart a Rheem Air Conditioner After Power Loss With the Reset Button
- Raise the temperature on your thermostat to 80-degrees Fahrenheit. …
- Find the red rubber boot that covers the rest button on the back of the air conditioner case. …
- Press the reset button once with your finger.
Why does my high pressure switch keep tripping?
The most common cause of a refrigerant high-pressure switch tripping in the wintertime is lack of airflow across the indoor coil. One of the signs of lack of airflow is a high temperature split across the indoor coil. Inspect the filter, not just if it is dirty but restrictive.
How do I know if my furnace pressure switch is bad?
Quote from the video:
Quote from Youtube video: Three a diaphragm in the pressure switch that's ruptured or stuck. Four the pressure switch hose is damaged.