Issue: not hot water; boiler runs a short time and shutdown; hot water pipe stay cool, no water flowi sound.
The pump is not spinning which can been checked after take off the front screw.
Old pump Grundfos UPS 15-50 130
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New pump Grundfos UPS3 15-50/65 130 :
Come with two rubber washers, and exactly the same fitting size (130mm) as the old pump.
Hot water is back after replaced the water pump.
Water temperature chart in OpenHab.
Tools:
You will need both 52mm pump spanner for the pump nut and a plumber spanner for hold the pump body to the position from spinning.
As long as you have the right tools, this job is pretty easy to DIY.
Please make sure drain the centre heating before doing the job. I started with shutting off the isolation valves, but there are still fairly amount of water came out and wet the carpet, then I decided to drain the centre heating system to stop the water.
Posted by: RustyOx - 06-09-2022, 10:57 AM - Forum: Rusty Ox
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The touch screen came with Lenovo ThinkPad T14s is very basic without Wacom AES layer underneath.
There is no official recommend or compatible stylus/pen for it.
I have tried 3 stylus, here are the test results:
University capacitive stylus: works
Huawei MatePen(AF61): not working
HP Envy X360 stylus (HSA-W001P, MPP 2.0 tilt pen): not working
Recently, we have a surprise guests, a pair of blue tits were raising children in the "birdhouse" in our rear garden. The empty nest photo were taken after they left.
A few years ago, I made teo birdhouses for hiding the CCTV cameras, but this one was left empty and hanging on the fence.
This birdhouse is one design but it can be mount as sideview birdhouse or straight birdhouse.
it is use 18mm thick 140mm width saw board which is around £12 from B&Q.
The camera is a TPLINK Tapo c100/c110 mini camera which costs about £20, it is an indoor camera, so some water proof wrapper is required around the camera back and power connector. The Tapo c110 camera 3D model is available at https://rusty-ox.swavesey.org/Thread-Tpl...a-3D-Model.
Now the windows 10 L2TP VPN is connected successfully to my home L2TP VPN server.
The HP OMEN 15-en1507na cames with windows 10 home edition, my verison is 10.0.19044 (build 19044). Winver command shows the version is 21H2 (OS Build 19044.1826).
Type in system information or winver command in windows 10 menu can find out windows version details.
TP-Link Tapo cameras came with 9V DC power supply, my Tapo C110 camera is tested working fine with DC 12V UPS power supply even with night mode on. Other tapo cameras such as C100, C200 should also worked, as the electronic design should be very similar inside.
The UPS has 3 batteries (18650 lithium battery) inside. The camera also worked on the 9V output of the DC 12V/9V/5V UPS.Ths 9V output is actually measured about 10V.
I have a Google Nexus 4 connected to a raspberry pi (as home automation server) all the time. The battery expended ( get bigger ) with gas inside like a balloon, so I decided to replace the battery with Sony 18650 battery which taken out from my original battery pack of the Trek BionX ebike.
Initially, I only connected two power pin, the phone doesn't power up. I guess the middle pin not connected is thermistor which may needed for power up check. The resistance between the middle pin and ground is measured about 62k, so I connected a 68k resister between middle pin and ground, and it works.
I bought this for my home automation project, it is planned to be used to control siren and flashlight for my security system.
Board was bought from Amazon.
I noticed that the NC, NO is labelled wrong. The NC pin on board is actually normal open (NO).
It doesn't fit well on my Raspberry Pi 4 case, after cut some bits and drill a few holes ( for heat dissipation purpose), I have managed to put it in the Raspberry Pi case.