I got it as a backup for a 12 year old one on my Buderus boiler. The old one has been throwing ERR 3 codes ever once and a while after the boiler sat cold for the summer. It seems to keep searching even though the error code says it should be replaced. I haven't used the new one but am keeping it as a spare until the old one finally fails. I can replace it in less than an hour when the time comes.
Verified purchase: Yes | Condition: New
The instructions for the new settings are badly written. High and low are easy enough, but the differential instructions are indecipherable. The unit certainly did take the place of the old broken aquastat though. Replacement was fast and easy.
Verified purchase: Yes | Condition: New
Great aquastat, it does cold start and maintaining temp. with multiple configurations. Plus it also has ability to use outdoor reset.
Verified purchase: Yes | Condition: New
Control is a replacement if needed. They work very well.
Verified purchase: Yes | Condition: New
Came a day early had no heat lucky whether got nice did not need will need it today thank you.
Verified purchase: Yes | Condition: New
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