Repairing Dunkermotoren D249 clockwise rotating motors, limit switch defective
The Dunkermotor D249 in the clockwise (CW) version is a blind and venetian blind drive commonly used in external blinds and venetian blinds, often in Warema systems. If your venetian blind no longer stops reliably at the set end position or if it overshoots it, the limit switch is almost always defective. We repair this type of damage for a fixed price.
Typical symptoms of a defective limit switch
- The end position can no longer be set or saved.
- The venetian blind stops before reaching the set end position.
- The drive does not stop and continues past the end position until it reaches the stop.
- After being driven over, the curtain is blocked at the shut-off mushroom; in the worst case, the textile bands are torn.
How to correctly set the end positions and distinguish between an operating error and a genuine defect
We show you how to set the end position in our instructions.
Repair without an electrician, thanks to Hirschmann connectors
Your Dunkermotor D249 is equipped with a Hirschmann connector (STAK/STAS), a coded and touch-proof plug connection. Simply unplug the motor, send it in, and then plug the repaired motor back in – no wiring or electrician required. The mounting bracket and shaft adapter remain in place. For safety, switch off the corresponding fuse before unplugging.
Our repair service for your D249 right-hand running
For €49 we will repair the limit switch defect of your Dunkermotor D249, with a 24-month warranty on the replaced components.
- You order the repair via the shopping cart and immediately receive the shipping information by email.
- You send us your unopened, unrepaired motor. It will be repaired on the day it arrives.
- You will receive an invoice and repair confirmation via email as soon as the repair has been successfully completed.
- The insured return shipment will take place on the day payment is received.
Notice
We only repair unopened Dunkermotoren without any prior repair attempts. Unfortunately, we cannot accept drives with moisture or impact damage, or those that have already been repaired.
If the motor is damaged in any other way
If not only the limit switch is affected, but the motor is mechanically damaged, a tested, used replacement motor for €69 offers an affordable and sustainable alternative to buying a new one. Your existing mounting bracket and shaft adapter remain intact, eliminating the need for complex modifications.
Technical data
- Drive: Dunkermotor D249, blind and venetian blind drive, clockwise rotation (CW)
- Torque: 6 Nm
- Power consumption: 100 W
- Speed: 26 rpm
- Operating voltage: 230 V / 50 Hz
- Protection rating: IP54
- Protection class: I
- Short-term operation: S2, 4 minutes
- Limit switch range: 68 revolutions
- Shaft coupling: 12 mm square
- Connection: Hirschmann connector
- Reference: 8892503365
This service applies to model 8892503365 of the Dunkermotor D249 clockwise running.
Setting the end position on the Dunkermotor D249
You can set the upper and lower limit positions of the D249 directly on the motor, without any additional tools. Detailed step-by-step instructions can be found here: Setting the Dunkermotor limit positions (instructions).
If the end position can no longer be set cleanly, the drive no longer stops at the set position or overshoots it, the limit switch is defective. We repair this for a fixed price of €49. Alternatively, we can replace your entire motor with a tested used motor with a 24-month warranty.
Here's what customers on Google are saying: "I'm very satisfied with the service. The repair of our blind motors was not only quick but also extremely cost-effective. It was never the motors themselves that were defective, but rather the limit switches. Thanks to the fast and professional repair, everything has been running smoothly for over six months now. We had already resigned ourselves to having to buy new motors – which would have been much more expensive. Luckily, we opted for the repair! We'd gladly use their services again if needed, but hopefully the rest of the blinds will now run without any problems for a while."
Markus MM, Google review of Dunkermotoren
Frequently asked questions about the Dunkermotoren D249 CW
How much does it cost to repair the Dunkermotoren D249 CW?
The repair costs a fixed price of €49. You will receive the invoice after successful repair, return shipping will take place after payment is received, and you will receive a 24-month warranty on the replaced parts.
How does the repair process work?
You order the repair via the shopping cart and receive shipping instructions by email. You send the motor via Hermes; the repair is carried out on the day of receipt, and the drive is returned insured after payment has been received.
Do I need to remove the motor and send it in?
Yes, the repair is done by sending the unit in. You can find the exact model name on the motor's nameplate.
Where can I find the instruction manual for Dunkermotoren D249 CW?
You can find the relevant instruction manual on this page under the "Download" tab. You don't need it for the repair; simply send us the removed device.
Gerd K. –
Excellent service!
At first, I thought I’d have to hire a company. But after doing some research, repairing the blinds seemed doable. However, the motor needed to be overhauled/repaired (the limit switch was faulty). That’s when I found this fantastic service through Google. The whole process was quick and completely hassle-free. I can therefore recommend them without reservation! Thank you so much!!
Translated from German by Google · Show original
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