That is how it goes
This is how the repair works

Please have the control unit controller removed by your heating engineer. Of course, you can also expand the control yourself if you know how to do it. Send us your defective control unit well packed with our order.
Immediately after receiving the controller, the equipment is thoroughly examined in our technique. After our analysis, you will receive an offer from us for repair.
You accept our offer by payment Paypal Prepayment or transfer to our account. Once the money has been received, the controller will be repaired by us. The troubleshooting of your controller is our top priority, so that the heating is running fast again. During our repair, all important components subject to a natural aging process are replaced with new ones and adjusted. Your controller will be overhauled and ready for the next decades.
Should you decide against a repair, we charge our test fee according to the terms and conditions. Your device will be well packed after receipt of payment and in the original condition.
Alternatively, we also gladly buy it from you.