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Hi Decided to send it back, since I've not the correct equipment to do the intensive debugging. I trust the shop is able to help me out. Thanks for the help so far! Update: 1-dec-2016 kiwi-electronics.nl, confirmed the OTGW has hardware failures and was waiting for replacement parts. They promised ...

Hi Decided to send it back, since I've not the correct equipment to do the intensive debugging. I trust the shop is able to help me out. Thanks for the help so far! Update: 1-dec-2016 kiwi-electronics.nl, confirmed the OTGW has hardware failures and was waiting for replacement parts. They promised t...

I read
R1 to R4: 325, 99, 217 & 325

Hi Thanks for the suggestion. Indeed with the 4 pins in the air. the problem shifts to A and B seems OK though I wonder why I see high values and if they are OK? Enter test number: 4 OK1A high-to-low: ### Error OK1A low-to-high: ### Error OK1B high-to-low: 9053us OK1B low-to-high: 2652us after repea...

Hi you are correct that things seems strange though last time I must have connected some things wrong (I guess I connected boiler to thermo etc) resulting in the failure last time. Now going through the different steps I getting repeatably the impression X2 is not OK. I checked all steps on the webs...

Hi Tested the OTGW X1 and measure 24.1V connected to the thermostat it decreases to 7V-->7.5V-->7V. next test #2 shows: 00140000 Read-Data Day of week and time of day: Unk 00:00 500,1018,500,509,501,507,503,507,500,519,495,508,502,508,502,508,502,507,500,518,494,507,1007,1013,1006,1021,494,507,502,5...

Hi, just found some time to test the OTGW as you proposed and started test #2 and #3. With both nothing happens (nothing in log or reported on the screen) :-( Maybe also worthwhile, the thermostat went black... only after connecting the thermostat to the boiler/CV it displayed the temp etc. Hope thi...

mmmm..
Enter test number: 4
OK1A high-to-low: 10us
OK1A low-to-high: 24us
OK1B high-to-low: ### Error
OK1B low-to-high: ### Error

still not OK?

Just checked the mA over the different contacts: "If the voltage is correct you can measure the current between the two terminals of X1. It should be between 5mA and 9mA" The current is 6.25mA "If you connect pin 3 of the IC1 socket to ground (e.g. pin 5), the current between the two ...

I checked everything indicate in the trouble shooting and V and A are within range. The last remark was testing #4 which I posted earlier. There is no signal on the Master interface..... Did I miss anything here?

Hi Just received the new L7805CV and before installing I confirmed the VCC (21.1V) which should be OK. Installation of the new L7805CV improved the VCC on pin 15 and 16 of IC2 (5.03V). Next I tested Delay symmetry with loop between boiler en thermo and found this: OK1A high-to-low: 12us OK1A low-to-...

Thanks will try that, meanwhile a replacement part is being shipped hoping it resolves this problem. When it arrives I'll also check to VCC.

Mark

Just checked and its a L7805CV, is this one correct?
https://goo.gl/photos/iWcormaCAdZPLady5

How can I check the input Vcc?

Thanks Mark

Hi, Just constructed the OTGW and started with the diagnostics part (http://otgw.tclcode.com/debugging.html#power) to be sure everything is correct. The first check: Check for 5V +/- 1% between pins 5 and 14 of IC1 and pin 15 and 16 of IC2 measures around 6.5V which is well above the set specs. Can ...