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Hi Schelte, My OTGW is really close to the boiler, in fact it is 1 meter away. I did extend the original cable from my thermostat with an CAT6 cable and also used the same CAT6 for the communication to the boiler. Since the communication to the thermostat is fine, I assume that the cable is not the ...

Here is the log from OTmonitor with VR=3 10:23:35.193011 OpenTherm Gateway 4.2.5 10:23:35.604570 T80190000 Read-Data Boiler water temperature: 0.00 10:23:35.702547 BC0190E00 Read-Ack Boiler water temperature: 14.00 10:23:36.605974 T001B0480 Read-Data Outside temperature: 4.50 10:23:36.833371 Error 0...

Nobody?

And a log with the error codes while VR=4 2017-04-08 10:19:21.180 OTGW: Error 04 2017-04-08 10:19:24.181 OTGW: Error 03 2017-04-08 10:19:35.182 OTGW: Error 03 2017-04-08 10:19:46.187 OTGW: 00000000/00000000,6.00,00000011/00000001,100.00,Error 04 2017-04-08 10:19:46.187 OTGW: 0/0,12.00,0.00,1.80,16.0...

I did run the diagnostic firmware test 5 and got the following results: Enter test number: 5 Thermostat: 0.67, 1.92 Boiler: 0.00, 1.54 Reference: 1.22 Enter test number: 5 Thermostat: 0.65, 1.89 Boiler: 0.00, 1.52 Reference: 1.22 Enter test number: 5 Thermostat: 0.65, 1.89 Boiler: 0.00 Reference: 1....

And another question, my thermostat is able to tell my boiler when to keep warm-water ready in a boiler. I can create a schedule in my thermostat and the boiler will keep the water warm at those times. Is it possible to make this a little smarter and send a message to the OpenTherm Gateway, keep-war...

Someone on the Tweakers forum told me that I could short-wire the pins of the MAX232 with the MAX232 installed, but it turns out to be a bad idea. After removing the MAX232 everything worked immediately. Now I still have some problems with receiving the error 03 and error 04. I tried playing around ...

Nope, I ordered all parts from Conrad. I used the serial cable which I soldered myself to the sub-D 9 connector and for the ESP8266 I'm using dupont wires.

Hi all, I have some problems with my OpenTherm Gateway. Please let me explain what is going on: I did solder my gateway as mentioned in the schematic on the tclcode.com website. I made two major mistakes during soldering, first: I did solder IC3 the other way around which caused a blown PIC16F88. Se...