How To Bypass Thermostat At The Control Board
To bypass the thermostat at the control board, you need to locate the control board, identify the terminal marked “Y” and “C”, and then connect these two terminals with a wire or jumper. This will bypass the thermostat and allow the control board to directly control the cooling or heating system. However, it is important to note that bypassing the thermostat should only be done temporarily and as a troubleshooting measure, as it can potentially damage the system if not properly handled.
Are you tired of constantly battling with your thermostat? Do you wish you had more control over your heating and cooling systems? If you’re someone with a moderate to advanced level of knowledge in HVAC systems and electrical wiring, then this blog article is for you. We understand that troubleshooting HVAC issues can be frustrating, especially when it comes to malfunctioning thermostats or the need for temporary control board bypassing.
But fear not, because in this article, we will guide you through the process of how to bypass a thermostat at the control board. Whether you’re a DIY enthusiast, a homeowner looking to improve your HVAC system, or simply someone who wants to have better control over their heating and cooling, this article will provide you with the knowledge and techniques you need.
We’ll cover everything from the basics of thermostat bypassing to step-by-step instructions on how to do it safely and effectively. No more relying on a faulty thermostat or waiting for expensive repairs – with our help, you’ll regain control over your comfort. Throughout the article, we’ll provide real-life examples and practical tips to ensure that you have a comprehensive understanding of the topic.
We’ll explain the importance of temporary bypassing and how it can be a useful solution in certain situations. By the end of this article, you’ll have the knowledge and confidence to take control of your HVAC system, saving both time and money. So, if you’re ready to tackle those thermostat woes and gain better control over your heating and cooling, read on.
- DROK electronic thermostat controller power supply is DC 6-30V or 5V micro USB; control load current is 10A (Max); test temperature is -50~110℃; sensor length is 0.5 meter.
- High current: Our digital temperature control board adopts high density PC board installation technology, the switch capacity can be up to 10A in spite of the small size.
- LCD display: Designed with bright LCD display, people can check the temperature clearly from any angle.
- User-friendly functions: The thermostat module has the function of real-time temperature reporting, temperature correction function, high-temperature alarm, emergency stop function and support UART Set, which make the module reliable and easy to use.
- Applications: With waterproof temperature sensor probe, it can be widely used for domestic appliance, office machine, audio, equipment, automobile, etc. (Remote control TV receiver, monitor display, Audio,Raspberry Pi equipment high rushing current use application)
- RANGE: This thermostat has a temperature range: 45º – 80ºF (7ºC to 27ºC) with an easy to use large, adjusting twist dial
- COMPATIBLE: This thermostat has been made for Cadet F series electric baseboard heaters only (sold separately)
- EASY TO INSTALL: Our thermostat conveniently mounts to either end of the Cadet baseboard heater, eliminating the need for extra wiring
- DESIGN: The white color of the thermostat is designed to match your baseboard heater and easily blend in and with its unique and compact design
- USE: Made with a single pole (2-wire) low setting and when turned fully counterclockwise, this thermostat is in low position
- The W1209 thermostat module has a STM8S controller, a sensor input, keys, LED display, and a relay. It can be reprogrammed for control, timing, or counting.
- Temperature Measurement Range: -50~110℃. Control Precision: 0.1 celsius.
- Electronic digital thermostat with a 3-digit LED display, extremely bright. Operation both in heating and cooling to easily control equipment and devices.
- The NTC probe is waterproof and allows to control the temperature even of fluids, allowing the controlled heated or cooling
- The output is electronically controlled by a microprocessor, to guarantee the utmost precision of intervention and an excellent resolution of reading temperature
- Upgrade Models. Digital display is modified to Fahrenheit temperature display (old section is Celsius display). Dual LED display, Red + Blue, Precise temperature control, high sensitivity, suitable for any occasion required temperature.
- Temperature range:-58℉ to + 257℉ ; Resolution: temperature range -3.9℉ ~ 99.9 ℉ is 0.1℉, other temperature ranges 1 ℉.
- Temperature measurement accuracy: 1 ℉. Backlash accuracy: 0.1 ℉. Refresh rate: about 0.5S. Input Power: DC 12V.
- Measuring input: 1 meter NTC (10K 0.5%) waterproof metal sensors.
- Relay Load: DC 14V 20A / AC 125V 20A. ( If the module works for a long time, it is recommended not to exceed 10A.)
- Operating voltage: DC12V can work in the range of 8-18V.
- Current consumption: no more than 20mA
- Fan interface: 2510-4P missing a bend (computer 4P fan dedicated interface)
- Fan current: interface can withstand 3A, if you need to control the larger current fan, bypass power to fan
- Board size: 43mm * 18mm * 9mm (without extension of the interface), the fan interface out of 8mm Set the parameters factory default: low speed 20%, acceleration temperature 30 ℃, acceleration width 5 ℃. The controller is designed for “manual control” and “automatic temperature control” in combination with each other
- WIFI CONNECTED SMART THERMOSTAT FOR 120V-240V electric baseboard heaters, fan-forced heaters, wall heaters, and convector units.
- HIGH VOLTAGE COMPATIBLE – Works with 120V, 208V, and 240V electric heating systems, including single pole and double pole configurations. Thermostat can only operate as single pole thermostat.
- 100% FREE APP FOREVER – All features included: remote control, scheduling, monthly runtime reports email, smart integrations – no subscriptions or hidden fees ever.
- SIMPLE 4-WIRE INSTALLATION – DIY setup in 15 minutes with included video guide – replaces standard line voltage thermostats, no electrician needed.
- UP TO 26% REDUCTION ON HEATING COSTS – Create custom heating schedules for each day, reduce usage when away, maintain comfort when home.
- This thermostat is a non-programmable line voltage manual control (120-240 Volts)
- Compatible with electric baseboards, convectors and non-inductive rated fan-forced heaters
- Bimetal temperature sensor offers simple, worry-free operation
- This 4-wire thermostat provides double-line break—positive OFF for easy installation
- Temperature Range: 40 degreeF to 80 degreeF (4 degreeC to 27 degreeC). Heat Only
- Bypass Low Voltage Thermostat to Activate the Circuit for Supco
- One hookup allows you to safely bypass any low voltage thermostat and activate the leads/circuit of your choice.Eliminates compressor short cycling and start the system safely when your ready to start it
- Resettable popper fuse – will never short out No batteries required – powered by the low voltage in the A/C unit Works on multi stage units including heat pumps Includes 20 interchangeable ends 2 Spade Adapter 6 Alligator Clamps 6 Magnetic Tips 6 Self Piercing Insulation Tips 6 Jumper Leads 1 Hard Zip-Up EVA Sectioned Case 1 Jumper King Thermostat Bypass Tool
- 100% Quality Assurance: Well-designed, well-crafted. This is the manufacturer’s replacement and is functionally equivalent to the previous part
- Please confirm that the model you need to buy matches our model before ordering
- 2 Working modes: this digital LED temperature controller module has 2 working modes, heating mode (start temperature is lower than stop temperature) and cooling mode (start temperature is higher than stop temperature), range from -50°C to 110°C; The high temperature control accuracy reaches 0.1℃
- Stable and reliable: the LED indicator light can display the current output status; The digital display tube can display the measured temperature, and the temperature measurement and control accuracy is high
- Durable material: this XH-W3001 digital thermostat switch is made of ABS, one of the five major synthetic resins, which is non-toxic, strong impact resistance, heat and low temperature resistance
- Waterproof probe: equipped with a 1-meter NTC10K probe made of stainless steel, which is waterproof and not easy to rust, easy to use and can last for a long time
- Suitable for: the temperature controller module can be widely applied in the conditioning systems, incubators, equipment cases, temperature control protection and others
- Replacement:3106996022 Thermostat Control Circuit Board compatible with Cool & Furnace Model: 3107541.009, For Cool, Furnace & Heat Strip Model 3107541.017, 3107546.008. And the following models:57915.331, 3104996.022, 3106995.032, 3106997.004, 3107168.001, 3107168.001, 3107541.009, 3107541.017, 3313191
- Compatibility:Compatible with 579 Series, 590 Series, 595 Series, 600 Series. Perfectly fits for 3106997.004, 3106997.012, 3106997.020, 3313189.000, 3313191.000, 3316230.000, 3316230.700
- Function:If your air conditioner has a fan out of control, the compressor does not turn off without cutting the power and other air conditioners running problems, you need to upgrade your circuit board
- High Quality:Made of high-quality materials, with excellent moisture, insulation, corrosion resistance, flame retardant performance, can effectively avoid short circuit and burn, safe and reliable.This one is green, and we have another one in white. You can choose the color according to your preference
- After-Sales Support:If you have any questions, whenever, please contact us, we will provide you with the perfect solution
The Basics of Thermostat Bypassing
Before we dive into the step-by-step instructions on how to bypass a thermostat at the control board, let’s start by understanding the basics of thermostat bypassing. This will give you a solid foundation and help you grasp the importance of this technique.
Why Bypassing the Thermostat is Necessary
Thermostat bypassing can be a useful solution in various situations. Let’s explore why you might need to bypass the thermostat and gain a better understanding of its importance.

Situations that Call for Thermostat Bypassing
There are several specific situations where bypassing the thermostat becomes necessary. Understanding these situations will help you determine if bypassing is the right solution for your HVAC system. Let’s take a look at some common scenarios:
Tools and Materials You’ll Need
Before you get started with bypassing the thermostat at the control board, it’s essential to gather all the necessary tools and materials. Having everything prepared in advance will make the process smoother. Here’s a list of what you’ll need:
Step-by-Step Guide to Bypassing the Thermostat at the Control Board
Now that you’re familiar with the basics and understanding when bypassing the thermostat is necessary, let’s dive into the step-by-step process of actually bypassing the thermostat at the control board.
Step 1: Shut Off the Power
Before beginning any electrical work, it’s crucial to shut off the power to your HVAC system. This ensures your safety and prevents any damage to the components. Follow these steps to turn off the power:
Step 2: Locate the Control Board
The control board is the central hub of your HVAC system, where all the electrical connections are made. To bypass the thermostat, you’ll need to locate the control board. Here’s how:
Step 3: Identify the Thermostat Wires
Now that you’ve found the control board, it’s time to identify the thermostat wires. These wires connect the thermostat to the control board and carry signals that control the heating and cooling functions. Here’s how to identify the wires:
Step 4: Disconnect the Thermostat Wires
Once you’ve identified the thermostat wires, it’s time to disconnect them from the control board. This will effectively bypass the thermostat and allow you to take control of your HVAC system. Follow these steps to disconnect the wires:
Step 5: Secure the Exposed Wires
With the thermostat wires disconnected, you’ll notice exposed ends that were previously connected to the control board. It’s important to secure these wires to prevent any electrical hazards. Here’s how:
Step 6: Restore Power and Test
Now that you’ve bypassed the thermostat at the control board and secured the exposed wires, it’s time to restore power to your HVAC system and test if the bypass is successful. Follow these steps:
Safety Precautions and Tips
While bypassing the thermostat at the control board is a relatively straightforward process, it’s important to prioritize safety. Here are some safety precautions and tips to keep in mind:
Common Issues and Troubleshooting
Even with proper bypassing, you may encounter some common issues with your HVAC system. Here are a few troubleshooting tips to help you address these problems:
Bypassing the thermostat at the control board can give you greater control over your HVAC system, allowing you to troubleshoot and make temporary changes without relying on a faulty thermostat. However, it’s essential to remember that bypassing should only be done if you have a good understanding of HVAC systems and electrical wiring. If you’re unsure or uncomfortable with the process, it’s best to seek professional help to avoid any damage or safety hazards.
Troubleshooting if a Thermostat is BAD: Explained!
Frequently Asked Questions (FAQ)
How can I bypass the thermostat at the control board?
Can I bypass the thermostat without affecting the system?
What are the risks of bypassing the thermostat at the control board?
Are there any alternative methods to bypassing the thermostat at the control board?
Is it recommended to bypass the thermostat at the control board?
Conclusion: The Process and Importance of Bypassing the Thermostat for HVAC Systems
In conclusion, bypassing the thermostat at the control board can be a useful technique for troubleshooting and making temporary changes to your HVAC system. Understanding the basics of thermostat bypassing and the situations that call for it is crucial in determining if it is the right solution for your system.
By following the step-by-step guide and taking necessary safety precautions, you can successfully bypass the thermostat and gain control over your HVAC system. Before starting the bypassing process, make sure to gather all the necessary tools and materials.
Begin by shutting off the power to your HVAC system to ensure safety. Locate the control board, identify the thermostat wires, and disconnect them from the control board. Remember to secure the exposed wires to prevent any electrical hazards.
Once the bypassing is complete, restore power to your system and test if the bypass was successful. While bypassing the thermostat can provide temporary solutions, it is important to prioritize safety and have a good understanding of HVAC systems and electrical wiring. It is advised to seek professional help if you are unsure or uncomfortable with the process to avoid any damage or safety hazards.
