Honeywell Truesteam Problems

Honeywell Truesteam Problems: 11 Reasons and Solutions


You have got good Honeywell truesteam products, but suddenly it does not work anyway. You are probably thinking of going to the technician as winter is already knocking at the door.

But what if you know Honeywell Truesteam Problems and its solution! Yes, you heard that right.

Some major problems could have been faced in Honeywell truesteam products. These are low/high humidity, faulty water sensor, and insufficient input voltage. Besides, no HVAC power or airflow, fail to boil water, and overflow water are also included. You can easily solve these problems.

That was a short part of what’s coming next. So stick with us.

Low Humidity 

You will often face these problems. The humidifier is not working properly. This happened because either the heater was not functioning or there was very high airflow.

The Humidifier Heater Is Not Working

This is one of the common problems. It happened because of blown fuses or broken circuit breakers.


  • Ensure that the power light is turned on. Increase the humidity setting on the humidistat.
  • Verify that the furnace is turned on. Confirm for blown fuses or restart your circuit breaker.
  • If the problems continue, turn off the humidistat, disconnect the device, reset the circuit breaker, and contact a competent HVAC contractor.

Strong Air Movement.

Cold air is drying and adds to the humidifier’s workload. The improper functioning of the machine is the reason.


  • Keep all the windows and doors shut. When it’s not in use, lock the fireplace damper.
  •  Keep the exhaust fan operating as little as possible. Apply sealant over doors and windows.

High Relative Humidity

High Relative Humidity can be caused by condensation on the walls, let’s find the reason and solution to that.

Condensation on the Walls

Excess humidity can result in moisture on windows, sweaty stains on facades, stinky washroom, and musty odors. Extensive periods of prolonged humidity in your household can also cause rot and severe damage.


Consider Turning off the humidification until all moisture has dissipated. Reduce the humidistat level to put a limit on recurring.

The LED is Flickering

Truesteam has discovered one of 15 system flaws. LED flickering is one of them. 

People often get confused about how to solve this problem. 


  • Press the Reset button. If indeed the issue persists, switch off and then restart the humidifier’s electricity supply.
  • If the problem persists, contact a qualified HVAC contractor.

Water Sensor Is Not Working

Water sensors transform water into the air. Hence, it is important to function properly. Technical error is behind the problem.


  • Remove the lid and unplug the truesteam. Disconnect the wire from the water level detector. Lift the screen and discard it. Clamp with a snap-hinge.
  • Take off the water sensor component. Change the water sensor.
  • Place the sensor component back into the truesteam. Change Snap-hinge the lid back on and seal it. Reconnect truesteam and hit the Go option to reboot.

For your convenience, we give a product suggestion table of water sensors for Honeywell truesteam.

Product 1
Product 2

Unable to Fill Water Reservoir

Because of solenoid leakages,  water is not able to fill the tank properly. Besides, dust and materials also blocked the path to fill the reservoir. 


  • Turn on the inlet water. Examine the tank gasket and solenoid for leakage.
  • Switch off the power source and change the filtration system. Hold down the Go key till the red Maintenance light goes off.
  • If indeed the reservoir still won’t fill, push the Drain button. If the tank is not empty, disconnect the truesteam and ensure the water in the tank is cold before continuing.
  • Complete the tank cleaning procedure. Before opening the tank, make sure you have a proper grasp of it, especially if there is water.
  • Remove any accumulated material from the tank’s down orifice to the solenoid. Rebuild the tank and reconnect truesteam. To restart, hit the Go icon.
  • If somehow the tank continues to fail to fill, change the solenoid valve.

There Is No HVAC Power

Poor cable connection is the main reason behind the problem. Besides, a broken circuit or fuse may also cause the problem.


  • Disconnect and reinsert truesteam to determine whether power comes back. If electricity is not restored, check that the HVAC gear is powered.
  • If the circuit is accidentally knocked, check the circuit breaker or consider replacing the fuse. Disconnect the truesteam and take off the cover.
  • Examine DIP 4 location and confirm proper wiring depending on DIP 4 location. Connect truesteam and hit the Start button.
  • If the issue persists, confirm the circuit is rated to handle truesteam. Disable any extra equipment that is connected to this connection. If indeed the fault vanishes, the circuit strength is insufficient for your equipment.
  • If the error occurs again, end up replacing truesteam.

No Airflow Is Detected in the Supply Duct

Supply ducts are an important part. Air flow must be gone through this portion. Otherwise, the machine will not work. Hence, it is essential to know the types and sizes of ducts, like 6 inches vs 8 inches.


  • Check that the additional add-on air verifying device is properly fitted and connected.  Disconnect the truesteam and take off the cover.
  • Check that the DIP buttons are properly set. DIP 4 lower, DIP 5 higher. Replace the top and reconnect the truesteam.
  • To resolve the issue, hold down the Go option. If the problems continue, change the air testing device.

The Heater Failed to Boil Water 

This happened because either the dust is in the reservoir or the water sensor is not functioning. 


  • Hold down the EMPTY switch for three seconds, then complete the clean-up instructions in the Expert Installation Instructions.
  • Put the tank back together and hit the RESET button. Start the humidistat call. If the issue reappears, replace the device.

Water Overflow Detected

Over tightening the drainage system is the main reason. Furthermore, check the water sensor property. 


  • Check that the drain pipe is not over-tightening or immersed in water. If a drainage pump is utilized, make sure it works properly.
  • Examine the drain/overflow tube for water. If there is constant water flow, apply the cleaning instructions in the Expert Instruction Manual.
  • After cleaning, turn on the humidistat and check its performance. Disconnect truesteam if the issue repeats. Remove the lid by loosening the cover screw.
  • To dismantle the water sensor assembly, detach the wire from the water level sensor and raise the snap-hinge attachment. 
  • Wash the sensors with hot soapy water to reveal the metal. It is acceptable to employ steel wool or a brush. Replace the sensor piece in the device, then reattach and tighten the lid.
  • Plug in the device and hit the RESET button. Replace the water level sensor unit or the solenoid valve if this issue repeats.

The Electronic Circuit Panel Is Overheating

Sometimes, overheating voltages can cause a short circuit. And the circuit panel goes down. Have a basic idea about the main disconnect vs service disconnect. It will help you a lot.


  • Check for ventilation openings on the surface that is free of obstacles. And one foot of space is kept throughout the cover’s perimeter ventilation openings.
  • Ensure that truesteam is installed. Put in an area with 32°F (0°C) conditioned air 104°F (40°C).
  • Switch off the humidistat and leave it alone. It is now time for the circuit board to rest. Disconnecting and uninstalling the unit. Cover will help with this.
  • Turn on the humidistat and click The RESET button. Begin humidity call confirmation.
  • Allow the section to run and test for steam spills from the tank and circulation openings. End up replacing if steam is detected.

Insufficient Input Voltage

The issue is most likely caused by voltage fluctuations from the provider or poor wire in the house.

 If the issue is only attributable to the truesteam function, the error should resolve itself when voltage levels become normal.


  • Hold down the RESET button until the CALL SERVICE LED turns off.
  • Starting a humidistat calls for humidity and watches for the fault light to return.
  • If the fault occurs again, check the line cord input voltage before and during the humidistat call. To ensure truesteam works correctly, the line voltage should not go below 102Vrms.

Don’t confuse whether you can mix 12/2 and 14/2 wire together. You can easily do that. And it is not the reason behind insufficient input voltage.

Replacement Solenoid Valve

The steps are given down below:

  1. Disconnect the truesteam once it is empty. Turn off and detach the water pipes from the bottom of the device.
  1. Release the red lever, detach the reservoir from the solenoid valve, and replace the tank.
  1. Unplug truesteam from the support frame. Take out the lid with a flathead or Torx screwdriver. Remove the valve wiring connector from the circuit.
  1. Disconnect the backplate of the structure at the four points with a flathead screwdriver. Remove the valve from the rear of the chassis and the wire from the truesteam frame.
  1. Reassemble using the fresh solenoid valve, sequential steps 2-8 in the opposite order.

We know you have so many questions about functioning and operating. You can learn about those from manuals

That’s all about it on our part.


What does a steam humidifier do?

The primary goal is the Steam Generation Process. This is referred to as isothermal humidification. Steam humidifiers are particularly intended to boil conventional, reverse osmosis, or deionized water using centralized facility steam. As a result, such systems may generate pure and hygienic ambient steam devoid of contaminants.

What is the lifespan of Honeywell humidifier filters?

It is advised that the filter be changed once each 30-60 days to improve the total effectiveness of your Honeywell Humidifier. The length of time depends on how often the humidifier has been used.

What happens if I don’t use a humidifier filtration system?

It is not advisable to use a humidifier without even a filter. Water debris, airborne pollutants, and minerals can harm the humidifier or be discharged into the house’s air.


So, what are your thoughts after reading the article? We try to include every possible reason for Honeywell Truesteam Problems.

Be very cautious when doing the work. Wear rubber gloves to avoid any shock. Read the manuals to know more.

That’s the wrap from our part. We hope you can solve any problems regarding the issue. 

Best of Luck!

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