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technolysis HY703RF WIFI Thermostat User Manual

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HY703RF-WIFI ThermostatUser Manual

Thank you very much for choosing our products and services, and also for your trust and

support.HY series thermostats are suitable for temperature control of electric floor

heating system, water floor heating system and gas boiler heating system, all products

are designed with backlight.

There are two WIFI distribution methods, you can choose one of

them:

App Store research“Smart

Life” or “ Smart RM ”

download APP，APP icon

as below



receiver distribution network, power supply is connected, long

press key to enter WIFI distribution network, the blue lights

flash said EZ distribution network model, blue light slow said

AP mode of distribution network



Thermostat distribution network: switch on the power supply,

after the thermostat and the receiver are successfully

paired,Power off thermostat,then press

with

3-5

seconds，Active WiFi pairing

Function Definition

WW:Waterheating 5A WE:Electric heating 16A WW-LD:boiler heating and water heating

Product Features



Up to 0.5°C accuracy for precise

control of your desired temperature

Child lock design, do not worry about

children will be misuse



Classic holiday mode, so you can fully

save energy while on vacation

External sensor temperature can be

queried by pressing a key

Power-down memory function, easy to

use

Temporary manual mode: Set the

temperature in the programming mode,

the thermostat will run according to

the temporary setting temperature until

Programming mode working methods

include: 5+2, 6+1, 7 days three ways,

and can be DIY programming

VIEW FULL SCREEN PDF MANUAL

General	Details
Name	technolysis HY703RF WIFI Thermostat User Manual
Make	Technolysis
Language	English
Filetype	PDF (Download)
File size	0.2 MB

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Get the free PDF manual for the technolysis HY703RF WIFI Thermostat User Manual and access setup steps, usage instructions, and troubleshooting tips. 👉 View online or download now to keep your thermostat running smoothly!

Technolysis HY703RF Manual: Questions and Answers

Can I use the Technolysis HY703RF with different types of heating systems?

Yes. The thermostat works with electric floor heating (16A), water floor heating (5A), and gas boiler heating systems, all with backlight display. User Manual, p. 1

Why won't my Technolysis HY703RF respond to heating or cooling commands?

Check that the thermostat and receiver are paired. The receiver's load/fault indicator flashing twice means they're not paired.

Verify the receiver's power indicator is on (green light always lit)
If unpaired, re-pair them: in power-off state, hold the pairing keys for 3-5 seconds until display shows 55
Confirm the sensor type (B4) matches your setup: N1 for built-in only, N3 for internal and external
If display shows E1 or E2, a sensor has failed and heating stops until it's replaced User Manual, p. 6

How do I know if my Technolysis HY703RF is communicating with the receiver?

Watch the receiver's RF signal indicator. It flashes when receiving wireless signals during normal operation.

Power indicator (green): always on when receiver is powered
RF signal indicator (orange): flashes during normal wireless communication
Load/fault indicator (red): on when load output is open, off when closed
If red flashes 3 times with 2-second gaps, wireless signal was lost over 1 hour User Manual, p. 7

What is the Technolysis HY703RF's default RF transmission interval?

20 minutes between communications under normal conditions. User Manual, p. 6

What does the receiver's red indicator mean on my Technolysis HY703RF?

The load/fault indicator shows output status and errors. On means load output is open; off means closed; flashing indicates a fault.

Flashing 2 times with 2-second gaps: thermostat and receiver not paired
Flashing 3 times with 2-second gaps: wireless signal lost for over 1 hour
Flashing 4 times with 2-second gaps: external sensor alarm (only when N3 sensor type is selected) User Manual, p. 7