Lights NO
.
Function
Setting
range Ex-factory
Value
Unit
NO.1Indicator
NO.1.2 Indicator
NO.2 Indicator
NO.3 Indicator
NO.4 Indicator
Temperature
difference
start
-
up
Temperature
difference
High temperature
correction
Low temperature
correction
Temp
.
difference
of
stopped
pump
+
1
～
5
0
1
～
20
-10
～
10
-10
～
10
5
5
0
2
0
℃
℃
℃
℃
℃
Wiring Diagram
Failure
Causes
Precautions
No display when power
is on.
Check if the power is broken or the
thermostat failture.
。
Check power supply and change fuse.
Check if the input voltage is right or
change the thermostat with our distributor.
Displaying but machine
doesn't work
The setting temperature is lower than the
present temperature.
The heat protector is open circuit because the
pressure is over loads.
Reset the necessary controlling temperature.
Check the reasons for overload and overheating.
After the trouble is solved, restart to work.
Displayed temperature is
unstable or there exists
misplay.
The sensor is interfered; or poor wiring;
or Together with other power cord bundle
；
or line damage.
Separate sensor wiring with power cables
or change shielded lines or check if the contact
is tight or not.
Measurement error between
current temperature and
displayed.
The installation position of the sensor is not
correct; or the sensor's wiring is too long and
its resistance is over; or the wiring connected
poor; or the sensor is damaged
All sensors should be corrected at their locations.
Enlarge the cross section of the expanded wires.
Make sure the wires sealed is good. or Change the
sensor.
Machine does not stop
when the temperature
reaches.
The sensor is not correctly installed and cannot
measure the correct temperature. Compressor
contactor fails.
Check if the sensor has accurately measured
the temperature or not. Change compressor
contactor.
Relay work with overload
“EH” or “EL” is displayed
Return difference value is too small or the
setting for pressure protection is not correct.
The sensor is opened or shorted circuit.
Reset and enlarge return difference value. Adjust
setting for pressure protection.
Check to see if the sensor wiring has good contact
with coupling end or not.
Stop the pump
temperature
1
～
temp
.
difference
started
-
1
High
-
temp
.
Sensor
Low
-
temp
.
Sensor
Model: EW-M801AH
Output
load
：
220V/AC
5A 5A
220V/AC
1 2 3 4
5
6
7
8
9 10 11
Controlled
Heating
Water
pump
circulation
Note: When the temperature difference is set at 0, the electric power is entered
into the heating state.
At the same time, press the set key and key 6 seconds will restore
the factory settings
Parameters for Procedure
Trouble shooting
NO.3.4 Indicator
Heating temperature
difference
0
～
20
℃
5
Warnings
1. Please read this product instruction carefully and connect
input/output plugs of power & sensor to the corresponding sockets
strictly by following connection diagram, otherwise the usage &
operations will be affected. Check again to make sure there is no
mistake. Tighten all the screw of connection plugs again, and then
connect it to the power for running.
2. Keep away this product from moist or corrosive air and high
magnetic field. Otherwise the normal operation of this product will
be affected.
.
3. All our products have passed strict quality inspections before
leaving factory. We provide one-year quality guarantee (which is
limited to product itself ,and is not responsible for any other joint
and several liability) period for this product.
If you have any doubt or problem concerning the electronic
temperature or humidity controller made by us, please contact
our distributors and we will provide you high-quality after-
sale services. Thanks!
Guangzhou Eliweli Autocontrol Tech. Co., Ltd.
http://www.eliweli.com
If the products including but not limited to, the following is
not the product itself quality problem caused by the damage,
Install and use under the do not conform to the safe environment;
That the load capacity is beyond the scope of product is allowed;
Products by users to disassemble and change, change the internal
components, etc.,We will not be so and damaged products
provide a replacement and maintenance services, regardless of
whether its in the quality assurance period; Meanwhile, we will
not assume so direct or indirect losses caused by the liability to
pay compensation.
Product warranty date on the case is important basis of
product quality assurance. Appeared including but not limited to
full filling without permission, to change, to replace lost,
damaged, scratched, dirty, and so on, we will not provide a
replacement and maintenance services for these products.
