Check the contacts with your multimeter. These buttons operate the physical relays.
Connecting to controllers…
Select a relay below to begin.
Main · 8 relays
Ethernet uplink · Heater, fan & generator
Connecting
XY-MD02: checking sensor…
Rear · 6 relays
Wi-Fi to main · Rear lighting
Connecting
Rear light names are provisional until the circuits are assigned.
Generator contact tests
Relay 3 = START · Relay 4 = shared STOP / PRIME
No automatic retries
Waiting for controller…
The full test primes for 6 seconds, holds START for 2 seconds, then waits 90 seconds after START releases. The contacts cannot be on together. Running feedback is unverified; the test ends with feedback unknown and does not retry. ALL OFF cancels the sequence immediately.