Troubleshooting for KeepRite Furnaces. Error Codes and Common Problems

KeepRite is a well-known brand in the HVAC world. The reputable brand offers affordable heating solutions valued for quality and performance. Many Canadian homeowners choose its highly performing and energy-efficient furnaces.

KeepRite furnaces perform excellently – they help you save on energy bills and provide comfort. Many models come with high ratings and variable-speed motors that adjust heating to your preferences. These furnaces are built from durable materials and equipped with modern features. However, like any equipment, even the best furnace may malfunction unexpectedly. In this KeepRite furnace troubleshooting guide, you will learn about the most common issues, error codes and the best solutions.

What furnaces does KeepRite produce?

This manufacturer makes gas and oil furnaces. Their gas furnaces are in high demand. You can find a variety of energy-saving heating options, from basic models to high-efficiency units. Modern models come with features like two-stage heating and variable-speed blowers. So, you can save on energy bills and still keep a steady indoor temperature. For homes without gas lines, KeepRite offers oil furnaces. They are also reliable and run quietly. Many models are ENERGY STAR® certified – a smart choice for energy savings. If you are looking for an affordable furnace or the one with more advanced features, KeepRite has enough options to fit different needs and budgets.

Expected KeepRite furnace lifespan and common issues

KeepRite furnaces can last 15 to 20 years with proper care. Advanced models with two-stage heating features and variable-speed blowers are more durable. However, like with any furnace, unpleasant surprises can happen at any time.

• A common problem is when you cannot start your furnace and see the KeepRite furnace pilot light. It is usually ignition failure. It can happen due to a dirty flame sensor or a broken ignitor.
• Blower motor breakdowns are another frequent issue – they cause weak airflow and uneven heating.
• Clogged air filters can make the furnace work harder, raise energy bills and wear out parts faster.
• Gas furnaces sometimes have flame sensor issues, and oil furnaces may suffer from clogged nozzles or fuel supply problems.
• Thermostat malfunctions are common for all types of furnaces. This issue does not allow the furnace to maintain a steady temperature.

Many issues are avoidable, but it is very important to  service your furnace regularly. You should change filters, clean parts, and schedule yearly inspections to keep the furnace running hassle-free.  

KeepRite furnace error codes

KeepRite furnaces use LED flash codes to help identify issues quickly. These codes make it easier for both homeowners and technicians to understand what has gone wrong. The small LED light on the furnace control board blinks in specific patterns. Each of these patterns points to a different problem. Understanding these signals can save time and help prevent bigger repairs.

Here is what some flash codes mean:

LED Off. It can be inactive 24 VAC or 115 VAC power, possibly due to a blown fuse. First, check the door switch to make sure it’s securely closed. If it is, the issue may be a short circuit.

LED On. It means a furnace control error, which causes a 1-hour delay. If the error appears right after a power reset, you may need to replace the control board. The furnace will reset automatically after one hour.

Heartbeat (regular operation). The furnace is working fine. If there’s no heat, check the thermostat settings or air filters.

2 Flashes (pressure switch issue). This code often indicates a problem with the pressure switch. This could mean the pressure switch did not open when it was supposed to.

3 Flashes (pressure switch failed to close). It often happens when the vent is clogged or the inducer motor is broken. Sometimes, the reason for this is a loose connection in the pressure switch tubing.

4 Flashes (high limit switch open). It happens when the furnace gets too hot. Dirty air filters, blocked vents, or a faulty blower motor are the reason for this malfunction.

5 Flashes (flame sensor error). The furnace detects a flame when it shouldn’t or vice versa. It can happen due to a dirty flame sensor or a leaking gas valve.

6 Flashes (rollout switch open). This safety switch trips if the heat exchanger overheats. It is often caused by blocked vents or incorrect gas pressure.

7 Flashes (ignition lockout). KeepRite furnace 7 flashes indicate that the device tried several times to start but couldn’t. The igniter might be faulty, or there’s not enough gas.

8 Flashes (gas valve circuit error). The control board is having trouble operating the gas valve,  and it may need replacement.

10 Flashes (reversed polarity). It means the positive and negative wires for the voltage are swapped. If your unit is twinned, check the kit’s instructions for guidance.

If you see the KeepRite furnace flashing green light, the furnace is fine and ready to work. However, if there’s rapid continuous flashing, it means there’s a more significant issue that needs professional attention.

How to Reset Your KeepRite Furnace

Sometimes, all you need to do is restart your furnace by pressing the KeepRight furnace reset button. This simple action will clear error codes and get your system back on track. Here’s how to do it:

• Turn off the power using the furnace switch or circuit breaker.
• Wait for about 30 seconds to let the control board fully discharge.
• Turn the power back on.
• Check if the furnace returns to normal operation or if the error codes reappear.

If the error codes persist, especially those related to safety issues like the gas valve or limit switch, it’s best to call a professional HVAC technician. Trying to fix these problems yourself without the right skills, you risk your safety and void any warranties.

It’s important to remember that while error codes are helpful for diagnostics, they often point to symptoms of a deeper issue rather than the actual cause. Professional technicians use these codes as clues to perform a thorough check of the entire system and find the real problem.

When should you call an HVAC professional for help?

Now you know the most frequent issues with KeepRite furnaces and can decipher their error codes. Many of them are easy to fix with some basic troubleshooting at home. However, there are times when you need to delegate the task to a licensed HVAC technician. If you notice error codes repeat again and again even after you have tried to reset the system, it’s a clear sign that a professional should take a look.

Also, if you suspect a problem with key components, for example, with the pressure switch, ignition system, or flame sensor, these parts need expert diagnosis and repair. Issues related to the furnace’s internal circuitry or other complex components should also be handled by a professional. If you ignore these signs, you can end up with bigger, more expensive problems later on. So, the best solution is to act quickly and get professional help when needed.

If you are looking for a reliable HVAC service, Panda Home Comfort is ready to help. We are a team of certified technicians that can handle any HVAC challenge. Give us a call to learn more!