🔧 Upgrade Your Home's Comfort with Ease!
The Honeywell Home C-Wire Adapter (THP9045A1098) is designed to make your Wi-Fi thermostats compatible with homes lacking a common wire. With a simple adhesive mount and easy push terminals, installation is quick and hassle-free. This low-voltage adapter works with various heating systems, ensuring reliable performance and energy efficiency.
| Brand | Honeywell Home |
| Model Name | THP9045A1098 |
| Product Dimensions | 1.75"D x 3.44"W x 5.63"H |
| Controller Type | Hand Control |
| Special Feature | Low Voltage |
| Color | White |
| Specific Uses For Product | Furnace |
| Temperature Control Type | Heating |
| Connectivity Technology | Wi-Fi |
| Included Components | Wire Saver C-Wire Adapter |
| Power Source | Electric |
| Voltage | 24 Volts |
| Shape | Rectangular |
| Display Type | LCD |
| Control Method | Touch |
| Connectivity Protocol | Wi-Fi |
| Mounting Type | Wall Mount |
| Style | Simple |
| Backlight | Yes |
| UPC | 085267994828 |
| Global Trade Identification Number | 00085267994828 |
| Manufacturer | Resideo |
| Part Number | THP9045A1098 |
| Item Weight | 2.89 ounces |
| Country of Origin | Singapore |
| Item model number | THP9045A1098 |
| Item Package Quantity | 1 |
| Special Features | Low Voltage |
| Batteries Included? | No |
| Batteries Required? | No |
B**L
Works as intended for a heat pump system
TL,DR: Using this with an Amazon Smart Thermostat and works fine.Though I did have a small moment of panic initially after installing everything and setting up the thermostat itself. As I was admiring my work and watching the thermostat come to life and wake up in its new home, it began “clicking on” and then immediately going blank for several seconds. At first I was thinking this may be part of the set up… until it didn’t click on again and was unresponsive in every way. At this point I just knew for sure I fried something, was going to have to call a technician out, and they were going to tell me I’d have to replace my entire system for thousands of dollars. I grabbed my multimeter and verified I had power coming to the furnace and then checked the small 3 amp fuse at the control board which was blown. I switched that out with one I luckily had on hand and everything came back to life as I threw the breaker back on. That was yesterday afternoon and everything has been working fine ever since.Further things I learned during this process:- What each wire does on a heat pump system (hence the pic with them identified).- This adapter combines the fan and condenser wires to free up a wire to be used as the C-wire- The C-wire is effectively the return for the 24v to the thermostat to complete the circuit (think chassis ground on a car or neutral on a home circuit).- If you have an unused wire on your thermostat cable, you don’t need this. Just hook that unused wire to the C-wire in your furnace (look for the blue wire coming from your outside unit and verify where it goes to the control board in the furnace) because even if you get this, you still gotta find a C wire to connect it to.
J**N
Easy install
This was not difficult to install. Just follow the directions closely. Works great on my Anazon smart thermostat.
N**.
Nice
Easy to install, does the job. You can go without it but you will lose the option to run the fan only. Connect the green wire for power at the thermostat, and the red for common
K**R
C adapter for thermostat.
works great
P**S
Adapter does work AT ALL.
Product's instructions were less than good but workable. Even then, the product doesn't supply any power to the Alexa thermostat. I wasted time and money with the electrician only to determine that this thing is defective and there is no way to even test it. Don't buy it.
D**G
Works great on my honeywell thermostat
Worked great to add the extra wire so I could run the fan, works great on my Honeywell Thermostat
C**I
unnecessary purchase, worked without adaptor... should try without first
unnecessary, adaptor
T**M
Works
Works good so i can have a smart thermostat
Trustpilot
3 weeks ago
2 months ago
