Recent content by ChrisGG

Just to update: British Gas Engineer confirmed the CH 2 port Myson zone valve had developed a faulty microswitch. Replaced with a brand new Drayton 2 port valve and actuator. I guess the frequency of the Hive maintaining CH temp running the heating more frequently for sorter bursts was too much...

Appreciate the detailed response and background to the differences in old versus new thermostats. Makes sense. I'll do some more investigation on the valves the next time the issue occurs and see if I can feel a flow. Thanks again.

Thanks for the response and noted. Yes the HW boost function has been used several times without the heating also coming on. It has all been working fine until yesterday. Each of all the active combinations you mention above all working. I'm now thinking it must be an issue with CH valve not...

Thanks for the response. No you can hear the boiler gas jets are active and heating. I came home this afternoon and the thermostat had hit 24 degrees with a target set of 18.5. The missus and the kids said they thought it was hot! Note as above this coincided with my son turning on the HW boost...

Hi guys, I've got a problem with the Hive now. It's been working fine for two weeks no problems until yesterday. Basically the CH is running on regardless of the target temperature set on the thermostat. However the CH green light on the receiver is off with no error lights main status light...

Transferred the wiring from the EP2002 as above to the Hive receiver backplate. Hive all set up and working for the past few days no problems (y)

I thought I'd do a test of the above solution in the existing EP2002. Disconnected the earth wire (used as a switched live) in C and the brown wire in 4. I moved the grey wire from C to 4 in the EP2002. I then used the manual control on the EP2002 to switch the CH on and off. It works! The...

Appreciate the additional thoughts . Thanks again (y)

Thanks for the reply much appreciated. Appreciate the confirmation on the wiring to the Hive from the EP2002. Didn't think of using a multi meter for investigating the potential wires seen at the thermostat back to the EP2002. Will also try that. (y)

Thanks for the reply much appreciated. I'll give that a try. Makes sense those wires connected to the thermostat. (y)

Hi, hope someone can help me out. I'm installing a Hive central heating and hot water control replacing a Potterton EP2002 and Danfoss CH thermostat. I'm struggling to find where the CH thermostat is wired back to so I can remove it completely and bridge the connection. I cant find the...