Solved
I've found out, by dismantling one (see YouTube for how https://www.youtube.com/watch?v=uBGRc8XpOZI ) that there is invisible corrosion on the lower contacts. By scraping with a screwdriver I have removed it and have increased the bend in the contacts by pushing up on the central springs ...
Search found 3 matches
- Fri Nov 18, 2022 10:07 am
- Forum: Honeywell Home evohome
- Topic: HR92 blank display after batteries went flat over summer
- Replies: 2
- Views: 223
- Thu Nov 17, 2022 1:41 pm
- Forum: Honeywell Home evohome
- Topic: HR92 blank display after batteries went flat over summer
- Replies: 2
- Views: 223
HR92 blank display after batteries went flat over summer
This has happened to three of my valves. They are in hard to reach places so I left replacing batteries until now.
On changing batteries the displays have remained blank. I've checked the contacts and they are clean, top and bottom.
Is there an internal charge storage that needs to be replenished ...
On changing batteries the displays have remained blank. I've checked the contacts and they are clean, top and bottom.
Is there an internal charge storage that needs to be replenished ...
- Mon Mar 27, 2017 11:19 am
- Forum: Honeywell Home evohome
- Topic: BST
- Replies: 16
- Views: 931
Re: BST
Similar here - I have two controllers, both set the same. One has updated, the other has not.
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John Cooper
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John Cooper