I have several Mitsubishi Electric wall thermostats in my home. They operate two R-410A Mitsubishi CITY MULTI PUMY S-Series Systems. The thermostats will not go below 68 in some rooms and 70 in others. Previously they did. Now they display "limit temp function" when I try to set them lower. How do I set the thermostats lower? Thanks, Anton

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Model # CT410B Internet #100574426 Store SKU #129002
Honeywell Manual Electric Baseboard Thermostat (123)
Questions & Answers (32)

• Manual 4 Wire Premium Baseboard/Line Volt Thermostat
• Compatible with 120, 240 and 277 vac baseboard heat systems
• Simple dial-type mechanical control

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Store Details & Services Accessories (1) Product Overview
The easy-to-install Honeywell Manual Electric Baseboard Thermostat works on 4-wire (double pole) electric heat applications (baseboard or line volt) and allows for simple, worry-free operation. It has a simple dial-type mechanical control and is UL and CSA listed for safety.

• Mechanical operation, non-programmable thermostat
• 120 - 240-Volt; 4 wire
• Positive off
• Easy to install
• How to install and replace your thermostat
• How to choose the right thermostat for your home
• Click here for more information on Electronic Recycling Programs

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• Use and Care Manual

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Compare Similar Non-Programmable Thermostats
Price $21.99/each $24.97/each $44.28/each null¢ /null Name Double Pole 4-Wire Line Voltage Mechanical Thermostat Digital Non-Programmable Thermostat Single-Pole 10.4 Amp 120/240-Volt Digital Electronic Non-Programmable Wall Thermostat in White Manual Electric Baseboard Thermostat Brand Lux Honeywell Cadet Honeywell Ratings View Product View Product View Product View Product Specifications
Dimensions
Product Depth (in.)
1.5
Product Height (in.)
4.5
Product Width (in.)
2.75

Details
Color Family
Whites
Color Family
White
Operation Type
Mechanical
Returnable
90-Day
Shape
Rectangle
Thermostat Product Type
Non-Programmable Thermostat
Thermostat Shape
Rectangular
Thermostat Type
Heat Only
Voltage (v)
110/240v
Voltage (volts)
110/240
Warranty / Certifications
Certifications and Listings
1-UL Listed,CSA Listed
Manufacturer Warranty
1 year limited warranty
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Monica, There might be a break in the wire mat, you or a electrician will have to check with a digi multi meter.
Links below show how.
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."

How to test underfloor heating with multi meter

How do test the resistance of my electric underfloor heating system

http://www.suntouch.com/support/troubleshooting

Testing underfloor heating

Hello Melissa;

My name is Peter. I am a retired field service appliance technician.

There are several areas to check:

1.) Poor air flow - Your blower will not turn on if you are plugged up with lint. On the back of you dryer is a hot air distribution manifold. There are several screws to remove this manifold. In the bottom small section is where it gets plugged up.

Remove the manifold and clean it.

2.) Manifold High Temperature Thermostat - The is a high temperature thermostat mounted on the hot air distribution manifold. This may be bad. Disconnect power.Remove the thermostat.
Every household should have a multi-meter. They are only about $25.00 @ home depot or Lowes. This tool will save you hundreds of dollar in service calls on all of your appliances.
Set your multi-meter on the lowest Ohms (Omega Symbol). Put leader one contact on one contact and the other leader on the other contact. If the thermostat is good you will get a reading of '0'.
Anything other than that the thermostat is bad.

3.) Electric Heater High Temperature Thermostat - On the out side housing of your electric heater is another high temperature switch.
This is inside of your dryer. Mounted on the electric heater housing.


Ok, you Ohm this out as described above.

4.) Electric Heater - you have two contacts on you electric heater. Use your multi-meter to Ohm the heater out. There are two contacts. You should get a reading of '0'.

Ok. Your heater is bad. You can try to repair. The coil springs will separate. You can take a straight wire connector, strip the rubber from the connector, see if you can crimp the broken wires together.

The answer is R410A.

Refrigerant Types in a Central Air Conditioner
There are 2 different types of air conditioning refrigerant currently used in residential cooling systems. R-22, commonly referred to a Freon and R410A, a blend considered to be more environmentally friendly, sometimes called Puron.

R410A (sometimes known as Puron), is the industry's choice to replace R-22 in central air conditioning systems. It is less reactive with the environment while having the same home cooling characteristics of R-22. R410A is not interchangeable with R-22-you choose one or the other and your air cooling equipment is designed to operate with it. When you purchase a R-410A system, a new line set is included with your central air installation as well as a new evaporator coil. Our experience with R-410A has been excellent. New cooling systems have been dependable and efficient, as well as operating quieter! R-410A is the refrigerant of the future!

Less reactive with the environment
Replaces R-22 in the year 2020
Cannot be used with R-22 systems
Quiet and dependable
Freon, R22, heat pump refrigerant
R-22 also known as Freon has been used for decades as the refrigerant in central air conditioning systems. However it has been linked to Ozone depletion and has therefore been banned from being manufactured after the year 2010. It's price will increase as the supply decreases.

Good luck,

Marty

If I understand correctly the red reset button or ECO located on upper thermostat will not reset.
Add a comment if problem is different.

Electric water heaters are fully repairable by homeowner.
If circuit breaker to water heater will not reset, then you need full troubleshoot using inexpensive multi-meter from Home Depot::
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

If reset button will not reset, then two things can cause this problem.
1) Ground short between upper thermostat and upper element, including shorted upper element.
a) Look at wires to see visible signs of high heat and burning.
b) Test upper element for short.
http://waterheatertimer.org/How-to-test-water-heater-element.html

2) Upper thermostat is bad. Test upper thermostat, or just replace thermostat using generic upper thermostat from hardware store.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html

3) If problems persist:
Troubleshoot electric water heater using inexpensive multi-meter from Home Depot:
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html


Upper thermostats are generic unless you have "energy-smart" water heater that has control box and reset button located on top of tank.

410a cannot be used in a automotive system it will cause damage to your compressor, other other a/c components.
410a is used for home use only.as a substitute for R-22
see below definition.

Although the United States Environmental Protection Agency has mandated that R-22 along with other hydrochlorofluorocarbons (HCFCs) be phased-out in the United States, few window-mounted air conditioners are available that use R-410A. However, all of the largest central air conditioning systems manufacturers in the United States offer R-410A. As an alternative to window-mounted systems, a ductless "split" system is available which uses R-410A refrigerant, and can be installed with a 3-inch hole through the wall (or window opening).[4] R-410A has replaced R-22 as the preferred refrigerant for use in residential and commercial air conditioners in Japan and Europe.
Parts designed specifically for R-410A must be used as R-410A operates at higher pressures[5] than other refrigerants. Thus R-410A systems require service personnel to use different tools, equipment, safety standards and techniques.[6] Equipment manufacturers are aware of these changes and require the certification of professionals installing R-410A systems. In addition the AC&R Safety Coalition has been created to help educate professionals about R-41-A system.
manufactures recommendations for vehicle

NOTE:

• R-134a is the only approved refrigerant for use in this vehicle. The use of any other refrigerant may result in poor system performance or component failure.
• To avoid system damage use only R-134a dedicated tools when servicing the A/C system.
• Use only Polyalkylene Glycol Synthetic Refrigerant Oil (PAG) for internal circulation through the R-134a A/C system and only 525 viscosity mineral oil on fitting threads and O-rings. If lubricants other than those specified are used, compressor failure and/or fitting seizure may result.
• R-12 refrigerant and R-134a refrigerant must never be mixed, even in the smallest of amounts, as they are incompatible with each other. If the refrigerants are mixed, compressor failure is likely to occur. Refer to the manufacturer instructions included with the service equipment before servicing.

This unit comes with a remote control (optional wall mounted wired thermostat available) as a standard feature. This unit is precharged with the environment friendly R-410a refrigerant. No additional refrigerant is needed if the line set is 49 feet in lenght or shorter. In addition to its very high 20 SEER efficiency rating, the 15RLQ is only 31 in. long which makes it the smallest Mini-Split System in its category through out the industry.
This category of equipment is ideal for smaller spaces where spot cooling is required. Several models in this category are ENERGY STAR Certified, meaning they save you money on your utility bill. Residential applications including sunrooms and additions are made easier with these air conditioners and heat pumps. Do you have a warm spot in your home? Fujitsu mini-splits can provide extra cooling capacity for those hard to cool areas. Commercially, their small size makes them ideal for small offices, providing individual temperature control.
Fujitsu's I.A.Q. Systems provide residential and commercial property owners an innovative solution for clean, temperature-controlled indoor air. The Halcyon IAQ systems deliver powerful heating and cooling, are designed for ease of use and maintenance, and feature an unobtrusive design which can be integrated easily into any decor. The Halcyon IAQ systems filter dust, pollen and odor making them the perfect addition to any home!
Standard Features

• Wireless Remote Control
• Plasma Filter
• Sleep Timer
• 24 Hour Timer
• Dry Mode
• Auto Louver: Up/Down
• Auto Mode
• Quiet Mode
• Auto Restart/Rest
• Auto Changeover
• Low Ambient
• Cold Prevention

Warranty All Fujitsu ductless mini-split air conditioners and heat pumps come with a 2 year parts and 6 year compressor warranty.
Important: All installations must be performed or supervised by a certified HVAC technician in order for the warranty to be valid.

to tricked the thermostat only a way i know,to put on it an ice cube for a while.propably wrong choice to installed roof unit you must installed to the floor better for the ac and to you

Double check your wiring .if the indoor fan is not blowing then you either have an electrical issue OR bad blower motor .