Have a Brivis HE 20i ducted central heating unit with:
- Wall controller: Networker V1
- N-G1/lo heting module
The wall controller is working and shows Heater, Fan and time. When operating with the Fan only, it works fine.
When turn on the heater in 'Manual" operation, the wall controller is automatally on and off but no hot air coming into the house.
Strange enough, the heating unit can run differently each time.
Sometime, we cannot turn on the wall controller even it displays time (but no Heater/Fan). The NG1 shows "Searching".
Sometime, we can turn on the wall controller but it off again after a few second. The NG1 shows "MPS_OFFnG" | "Searching".
Sometime, we can turn the wall controller, the heating unit seems working for a while but will off again later. The NG1 shows "Pre_Purge", etc. We can see the fire ignited but off within a coupe of seconds, fan runs, the fire ignited but off again ...
Any ideas what wrong with the unit and how we can fix it?
Also, where is the Thermocouple for this HE 20i unit (very similar like this one)?
Does the wall controller have a reset function/button?