Wake the motor.
Make sure the motor battery switch is at 1 and the remote has a working battery.
Sunny motorized blind support
Motor DM25LEU/SRemote DD1803H
How to pair and program your Sunny motorized blind remote.
Step-by-step instructions for remote pairing, direction, upper and lower limits, preferred position, additional emitters and troubleshooting.
Model check: Follow this guide only when your motor and remote match the devices shown. Other Sunny, Somfy, Lutron or Matter-compatible systems may use different programming sequences.
Before you start
Confirm the devices and charge the motor.
Programming commands are time-sensitive. Keep the remote nearby, identify P1 and P2, select the intended channel and wait for each motor jog or beep before continuing.
01
Confirm DM25LEU/S and DD1803H.Use the illustrations above. Stop if your remote layout or motor button is different.
02
Recharge if the motor gives a low-voltage alarm.Do not continue programming during a low-battery warning. Use the motor’s specified 5V Micro-USB charging connection.
03
Set the lithium battery switch to 1.On the motor, 0 is OFF and 1 is ON.
04
Complete the sequence within 10 seconds.If the next signal is not received in time, the motor exits pairing mode and you must start again.
Essential setup
Pair the first remote in four steps.
Use this procedure for a new or replacement DD1803H emitter when the motor is ready to accept a remote.
Enter pairing mode.
Press and hold the motor’s P1 button for 2 seconds, then release.
1 jog + long beepConfirm from the remote.
Within 10 seconds, press and hold STOP on the remote for 2 seconds.
Wait for confirmation.
The motor confirms successful pairing. Test UP, STOP and DOWN.
2 jogs + 3 beepsNo confirmation? Let the 10-second pairing window expire, confirm the selected channel and battery level, then repeat from P1.
Read the feedback
What the jogs and beeps mean.
A jog is a short motor movement. Do not press the next button until the expected feedback occurs.
1 jogCommand accepted
The motor has entered or acknowledged a programming step.
2 jogsSetting completed
Common confirmation for pairing, a saved limit or preferred position.
Long beepReady or mode changed
Often indicates pairing readiness, deletion or a mode transition.
10 beepsLow-voltage warning
Stop operating and recharge before continuing setup.
Optional correction
Before limitsSwitch the rotating direction.
Use this if pressing UP makes the shade travel downward.
UP+DOWNhold 2s
- Press and hold UP and DOWN together for 2 seconds.
- Release after the motor jogs once.
- Test UP and DOWN again.
This remote-button method is valid only when limits have not been set. If limits already exist, use the model-specific P1 direction procedure or contact Sunny Shutter support.
Travel position
2 jogs + 3 beepsSet the upper limit.
- Press UP for approximately 2 seconds and move the shade to the desired upper position.
- Press and hold UP and STOP together for 2 seconds.
- Release after 2 jogs and 3 beeps.
UPpositionUP+STOPhold 2s
Travel position
2 jogs + 3 beepsSet the lower limit.
- Press DOWN for approximately 2 seconds and move the shade to the desired lower position.
- Press and hold DOWN and STOP together for 2 seconds.
- Release after 2 jogs and 3 beeps.
DOWNpositionDOWN+STOPhold 2s
Upper and lower limits cannot be stored at the same position. If no button is pressed for about 2 minutes while programming, the motor exits the setting mode.
Fine adjustment
Existing limitsAdjust a saved limit.
Upper limit:
UP+STOPhold 5sUP / DOWNadjustUP+STOPhold 2s
Lower limit:
DOWN+STOPhold 5sUP / DOWNadjustDOWN+STOPhold 2s
The motor exits limit-adjustment mode after about 2 minutes without input. Existing preferred-position memory is normally retained during fine adjustment.
User settings
Add convenience without resetting the motor.
Upper and lower limits should be set before adding a preferred position or additional remote.
Save or remove a favourite position.
Move the shade to the desired position, then use:
P2→STOP→STOP
Two jogs and three beeps confirm saving. Repeating the same sequence removes the position and gives one jog plus a long beep. Hold STOP for 2 seconds to move to the saved position.
Pair or unpair another DD1803H remote.
On the existing remote, press P2 twice. Then press P2 once on the new remote:
P2 existing→P2 existing→P2 new
Two jogs and three beeps confirm. Repeating the sequence unpairs the additional emitter.
P2 is recessed on the back. The motor can store up to 10 channels; adding beyond capacity may overwrite an existing stored channel.
Change how a short button press moves the shade.
UP+DOWNhold 5sSTOP
In jog mode, a short UP or DOWN press makes a small movement; holding the button for more than about 2 seconds runs continuously. Repeat to switch modes.
Adjust motor speed when supported.
Increase:
P2→UP→UP
Decrease:
P2→DOWN→DOWN
No response may mean the motor is already at its maximum or minimum supported speed.
Use only when necessary
P1 functions and factory reset.
The motor’s P1 button performs different actions depending on how long it is held. Count the jogs before releasing.
Press onceCycle upward, stop and downward.
Hold 2 secondsEnter pairing / add-emitter readiness.
Hold 6 secondsEnter radio-lock status; press P1 once to disable.
Hold 10 secondsChange motor direction after three jogs and three beeps.
Factory reset can remove programmed settings.
Pressing P1 for approximately 14 seconds causes four jogs and four beeps, resets the motor to factory mode and places it into deep sleep.
P1hold 14s4 jogs+4 beeps
To exit deep sleep, press P1 for approximately 2 seconds. Pairing and limit programming may then need to be completed again.
Do not factory-reset a working shade simply because the remote does not respond. Recharge, verify the channel and try the pairing procedure first.
Troubleshooting
Start with the simplest cause.
Stop if the blind is binding, damaged or unsafe. Programming cannot correct a mechanical obstruction.
The motor has no response.Possible causeLow motor battery, remote battery, wrong channel, radio lock or incomplete pairing.What to tryRecharge, replace the remote battery, confirm channel, press P1 once if radio lock is suspected, then pair again.
UP makes the shade move down.Possible causeThe motor direction is reversed.What to tryBefore limits are set, hold UP and DOWN for 2 seconds. With saved limits, use the P1 direction procedure or request support.
Pairing mode closes before completion.Possible causeThe STOP command was not received within the 10-second window.What to tryMove closer, confirm the channel and repeat P1 for 2 seconds, then STOP for 2 seconds without delay.
The shade stops too high or too low.Possible causeA saved travel limit needs adjustment.What to tryUse the upper- or lower-limit adjustment sequence. Do not factory reset first.
One remote controls the wrong shade.Possible causeThe remote was paired while more than one motor was in programming mode.What to tryIsolate the intended motor and re-pair one shade at a time. Contact support if multiple motors remain grouped incorrectly.
The shade moves unevenly or rubs.Possible causeMechanical obstruction, fabric tracking, bracket alignment or installation issue.What to tryStop operation and send Sunny Shutter a full-window photo plus a short operating video. Do not continue resetting the motor.
Battery and safe operation
Charge before troubleshooting.
The DM25LEU/S shown in the original guide uses a built-in lithium battery and Micro-USB charging connection.
Charging supplyUse the specified 5V Micro-USB connection; the original guide lists a maximum 5V/2A input.
First useThe original guide recommends charging for more than 6 hours before first use.
Low-voltage signalTen beeps when starting indicate the motor should be recharged.
CareDo not drill, knock, submerge or modify the motor. Keep charging and power cables protected from moving parts.
Original product reference
View the manufacturer-style instruction sheets.
The images below are retained as the original technical reference. Open them at full size when checking a detailed button sequence.
Motorized blind pairing FAQ
Quick answers before you reset anything.
Which motor and remote does this pairing guide cover?
This guide covers the SUNNY DM25LEU/S rechargeable tubular motor with the DD1803H single-channel timer emitter shown on this page. Other motor and remote systems may require different instructions.
How do I pair the DD1803H remote to the motor?
Hold the motor’s P1 button for 2 seconds until one jog and a long beep. Within 10 seconds, hold STOP on the remote for 2 seconds. Two jogs and three beeps confirm successful pairing.
Why will my motorized blind not enter pairing mode?
Recharge the motor, confirm the battery switch is at 1, check the remote battery and selected channel, and keep the remote close. If the STOP signal is not received within 10 seconds, pairing mode closes automatically.
How do I reverse the motor direction?
Before limits are set, hold UP and DOWN together for 2 seconds until the motor jogs once. If limits are already stored, use the model-specific P1 direction procedure or contact Sunny Shutter support.
How do I add a second remote?
With limits already set, press P2 twice on the existing remote, then press P2 once on the new remote. Two jogs and three beeps confirm pairing. P2 is recessed on the back of the DD1803H remote.
What happens if I hold P1 for 14 seconds?
The motor gives four jogs and four beeps, resets to factory mode and enters deep sleep. Stored pairing and programmed settings may need to be created again. Press P1 for about 2 seconds to exit deep sleep.
What do ten beeps from the motor mean?
Ten beeps at startup are a low-voltage warning. Stop operating and recharge the motor before continuing setup or troubleshooting.
What should I send Sunny Shutter if pairing still fails?
Send the order number, a photo of the remote front and back, a photo showing the motor label or P1 area, and a short video showing the button sequence and motor response.
Still not responding?
Send us the order number, device photos and a short video before performing another reset. Sunny Shutter can help identify the correct programming sequence.
