Air Mover, Thermistor | Therma-Stor Products Group R175 manual

No dehumidification, air mover runs but compressor does not.

1.Bad connection in compressor circuit

2.Safety float switch closed, check pump reservoir

3.Defective compressor capacitor

4.Defective compressor overload

5.Defective compressor

6.Defective control board

Air mover does not run. Compressor runs briefly but cycles on and off.

1.Loose connection in blower circuit

2.Obstruction prevents impeller rotation

3.Defective air mover

Unit removes some water but not as much as expected.

1.	Air temperature and/or humidity have dropped
2.	Humidity meter and/or thermometer used are out of
	calibration
3.	Unit has entered defrost cycle
4.	Air filter dirty
5.	Defective defrost thermistor

Compressor runs with POWER button OFF.

1.Defective relay

2.Defective control board

3.Upper housing not sealed to tower

No hour meter display when the HOURS button is pressed.

1.Unit is plugged in

2.Battery charge is low. Replace battery

3.Defective control board

5.3 Air Mover

The motorized impeller has a PSC motor and internal thermal overload protection. If defective, the complete assembly must be replaced.

1.Unplug power cord

2.Remove the four screws attaching the bottom plate to the lower housing

3.Disconnect the impeller leads

4.Remove the four screws holding the impeller to the bottom plate

5.Reassemble the new impeller using the above procedure in reverse

6.	Low refrigerant charge
7.	Air leak such as loose cover
8.	Defective compressor
9.	Restrictive exhaust or inlet ducting

Unit runs but does not pump water.

1.	Hose kinked or plugged
2.	Pump motor defective

5.4 Thermistor

The defrost thermistor is attached to the refrigerant suction line between

the accumulator and the evaporator.

To replace thermistor:

1.Unplug the dehumidifier

2.Remove the front housing

Figure 4: Thermistor attached to the refrigerant line.

3.	Pump check valve plugged
4.	Bad connection in pump circuit
5.	Hose disconnected internally
6.	Defective control board (pump phase)

Unit pumps water automatically but not when PURGE button is pushed.

1.Bad connection in PURGE button circuit

2.Defective control board

Evaporator coil frosted continuously, low dehumidifying capacity.

1.Defrost thermistor loose or defective

2.Low refrigerant charge

3.Dirty air filter or restricted air flow

4.Upper housing is not sealed to lower housing

3.Cut cable ties and remove aluminum tape.

4.Remove control panel

5.Unthread thermistor from control housing grommet

6.Detach thermistor from control board jumper, J1

7.Reassemble thermistor and dehumidifier using the above procedure in reverse

Figure 5: Picture of pump and reservoir.

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R175 specifications

Therma-Stor Products Group has made significant strides in providing efficient and reliable solutions for indoor air quality and moisture control with their R175 model. The R175 is engineered specifically for tackling humidity challenges in various environments, making it a preferred choice for both residential and commercial applications.

One of the standout features of the R175 is its impressive dehumidification capacity. With the ability to remove up to 175 pints of moisture from the air per day, it is well-suited for larger spaces or environments that experience higher humidity levels. This high capacity makes it ideal for basements, large living areas, or commercial spaces that require stringent humidity control.

The R175 operates using advanced desiccant technology. Unlike traditional refrigerant-based dehumidifiers, the desiccant system efficiently absorbs moisture from the air even at lower temperatures, making it functional in settings with cooler conditions without sacrificing performance. This technology is particularly beneficial in areas where temperature fluctuations are common, ensuring consistent moisture control.

Another notable characteristic of the R175 is its energy efficiency. The product is designed to consume minimal energy while maximizing moisture extraction, aligning with modern environmental standards and reducing overall operating costs. Its eco-friendly design reduces the carbon footprint, making it a responsible choice for environmentally-conscious consumers.

Quiet operation is another significant advantage of the R175. The unit is engineered with sound-dampening technologies that minimize noise output, making it appropriate for use in settings where a peaceful environment is essential, such as bedrooms, libraries, or offices.

Ease of use is an essential aspect of the R175. The product features a user-friendly interface that allows users to set and monitor humidity levels effortlessly. Furthermore, it is designed for hassle-free maintenance, with easy access to filters and components, ensuring optimal performance over the long term.

Durability is also key to the R175's appeal. Constructed with high-quality materials, this unit is built to withstand the rigors of daily use in various environments, promising excellent longevity and reliability.

In summary, the Therma-Stor Products Group R175 stands out for its high dehumidification capacity, energy efficiency, quiet operation, user-friendly features, and durability. It presents a robust solution for anyone looking to effectively manage moisture and enhance indoor air quality, making it an excellent investment for maintaining comfortable and healthy spaces.